How big is your tank?
I'm sure the clown police won't like it but I have 2 oscellaris and 2 pink skunks happily coexisting in a 75.
The Skunks host in a large carpet anemone,, the oscellaris live in a bunch of Rhodactis mushrooms less than 6 inches away. There's a bit of aggression now and again from the female Skunk (Queen of the tank) but nothing worse than a bit of chasing,, and not very often. Both Oscellaris adopt submissive shaking when confronted by the skunk and that seems to be enough for her.
The skunks are cleaning the backglass right now so I'm hoping for a spawn in the next week or so.
I know Percs aren't terribly aggressive,,, not sure about Clarkii's.