Recasts troublesome performer (7)
I believe the answer is:
actress
'performer' is the definition.
(I know that actress is a type of actor)
'recasts troublesome' is the wordplay.
'troublesome' indicates anagramming the letters.
'recasts' anagrammed gives 'ACTRESS'.
(Other definitions for actress that I've seen before include "Theatrical female" , "Female in theatre" , "dame on stage?" , "Terry, say" , "Stage performer" .)