I haven't see Clay act, yet. If he were coached by a top-notch acting teacher, he might do very well.
You're right - as coachable as he is, I agree. Remember how awkward he used to be with *any* dance step? Some skilled dance coach got hom working, and he does just fine. Very comfortable on stage. At this point, his acting is certainly self-conscious, but it's earnest. :-)