I agree with LOUPEN, but as all 6 letters are given in wordplay it can't be one of the nine. I have 8 of them, and al full grid apart from 15A where I have -YAN. I reckon this is one of the nine, but I can't tease any meaning out of "Reynolds casually" for -YAN unless there is a Ryan Reynolds casual connection. RR is a Canadian actor, but why "casually"?
If I'm right I'm nowhere near knowing what to do, however.