Okay, I have a proposition: I think Clef should for one, be an exception to our normal site rules, and thus consequently have a key for both his alternate personalities and for his other primary interpretation.
I should preface by saying that I have spent a good amount of time on the SCP wiki (as previously a reader, and now a writer), and have become pretty intimately familiar with how both the writers and readers (at least of those who interact with the site directly) view the site, as well as how their site standards regard canon and their characters. This doesn't necessarily make my argument more valid but I hope it at least gives some verification that I am not just talking out of my ass or working off of some grossly limited data set, so to speak.
I will start by stating frankly that our current site standards regarding SCP are meant to mimic the nature in which characters exist on the wiki. We treat them as functionally Composite, because for most characters, this is more or less an accurate representation of how they are treated on the SCP Wiki. Bright, for example, has numerous forms and bodies, and even across multiple universes in some extreme cases, but they are all still ultimately regarded as the same character, Dr. Bright. The bright who uses the conceptual pointer to attempt to relieve himself of violently ******** himself is generally regarded by the SCP wiki as the same bright who tried to murder the Swann entities, and here we in the same fashion view them as the same character of "Dr. Bright" even if they theoretically
could have been alternate counterparts of each other. Some characters are cleaner, like Marion Wheeler existing primarily in a series or two and then a couple of other side articles.
Now that we have the Rule, let's talk about the Exception.
Clef is one of the only characters that I would say has two established versions of the character that are equally valid in the mind of the wiki (both writer and reader). This isn't just some accident either. I am brushing over a lot of stuff for the sake of brevity, but Clef's character was created with this ambiguity in mind, of course due in no small part to him being a massive liar (I see this has been somewhat mentioned in this thread, but I will reiterate). I don't mean how we sometimes refer to characters on VSB, where maybe we call the validity of a statement somewhat into question if someone like Kumagawa says it. With Clef, the default general trust that if a character gives exposition you can be someone certain the author is trying to accurately convey exposition is completely out the window. Most of the time you cannot even say if you are supposed to be able to tell if he is lying or not. Even if he says that he was lying, that itself can be taken as a lie as well. He is also a man of half truths and deception, not only flat out lies. Is Clef a reality bender? Is Clef a reality sink and/or Anchor? Is Clef actually Satan? Is Clef an inherited title?
This was all left up to interpretation, as many things are on the SCP wiki, to allow readers to form their own headcanon. But on the SCP wiki, readers become writers, and headcanon becomes "actual" canon in the process. Ultimately as long as "Clef is a badass, scummy Type-Green-hunter with resistance to anomalies" (also the animal head photo thing) remained consistent, it remains as Clef. Sometimes Clef is a reality bender who doesn't regularly use his powers outside of suppressing others, and sometimes he is flat out a reality sink. Sometimes he has reality-warping due to being a Type Green, and sometimes he has it due to being the devil himself. And despite how odd it may sound, outside of story-specific cases where authors try to specifically delve into Clef's backstory, these things don't usually matter to how Clef is treated or thought of as a character. Often you can even walk into these stories and have these mutually exclusive views and have them both fit.
I also want to go ahead and dash any hopes we may have of choosing the more "consistent" choice between the two. Even within the same story, different readers can walk away concluding that it both supported and refuted Clef being a reality bender. A great (and short) example is
Clef's seminar on fighting type greens. Did he just reality bend the whole room, then lie about it after? Did he just drug everyone there and trick them into thinking he was bending reality? Even I personally have read this article a couple of months apart and thought it was supporting each one at different times. If we can't even determine what many articles are pointing at, we have no way to determine which is more popular. In addition, both interpretations do not work completely consistently. Let's look at this from both sides:
Despite Clef being a reality sink/anchor, he is able to both use and interact with anomalous weaponry for prolonged periods of time, and sit in the presence anomalous entities without them falling apart like the blackhole of the supernatural he is supposed to be. Not to mention the other anomalous properties he is supposed to have himself, like the animal head photograph thing. In one case that comes to mind, even in the kaktus verse where he is directly stated to be a reality sink, an article connected into it has him make the sun blink.
Despite Clef being a reality bender/type green, he does things that we know Type greens shouldn't be able to do. Unlike a lot of verses where the nature of reality bending and its mechanics are left a bit up in the air, we have very specific mechanics on what they can and cannot do; their weaknesses and areas of control. The GOC's Pamphlet (
here is one article where they have some excerpts) on the matter is one of our best in universe sources, and it has been used in multiple articles out of universe. Now, to be clear, these rules do not hold for all reality benders, but the 5 percent that these do not hold for are, to put it frankly, completely outside the weight class of the feats we have for Clef's reality bending capabilities. Thus, we can reasonably assume that these rules and limitations hold for him. So, Let's start with Clef's most common use of reality bending: passively nullifying the anomalous. And here we already run into several problem. First, reality bending is explicitly stated to be thought based. Second, it is stated that regardless of level, they can be taken by surprise. Third (related to the 2nd), reality benders cannot effect what they cannot perceive. Fourth, reality benders cannot effect things without the will to do so. If something is thought based, requires will, active perception, and can be bypassed via a close-range surprise attack, that certainly is not a passive ability lol. To double down on this, presumably Clef has been able to sleep during his time since they took the witch child into custody, yet evidently does not fall victim to her reality shifts even while unconscious (just a reminder that the witch child's reality bending works a lot by belief, so unless they have been sleeping at exactly the same times every night, he would fall within her domain of control).
In some sense, Clef is the exception that proves the rule, which is why I think it is okay to have him have the keys for his alternate personalities and also a reality sink/anchor interpretation. Obviously we can toss a note on the profile to clarify the situation. Regardless of which of the two interpretation we go with for a single unified profile, we end up cutting off a decent chunk or at the very worst cherry picking only the feats and portrayals that support this version. Unlike most cases, that is also very likely to be a large portion of Clef's total features. Thus, the most consistent and accurate interpretation is to include both on the profile, and trying to stick with just one is a fool's errand on multiple fronts. Most of the time if a Foundation staff member is attributed the ability to, say, conjure fire in one story, and the ability to BFR people under the wanderer's library, we can just all attribute it to one key as they are not mutually exclusive. When a character does have some contradictory feats that don't fit within the usual view, we can just toss it out as an outlier. Clef is one of the few cases where he can somehow have two mutually exclusive abilities that are accepted as the "primary" interpretation, that can have numerous articles cited in support or opposition to both sides. And just to reiterate this again:
most of Clef's articles work for him being either a reality bender or a reality anchor. If our goal with our canon standards are to align with how the characters are on the wiki, then for Clef, it should be acceptable to portray him as the anomaly in the system that he is. I would also raise that since these versions of Clef are interchangeable the vast majority of the time, it would be fine to scale him outside of specifically his feats for his reality bending and sink stuff