Actors like being around ten flipping clappers (9)
I believe the answer is:
castanets
'clappers' is the definition.
(synonyms)
'actors like being around ten flipping' is the wordplay.
'actors' becomes 'cast' (group of actors).
'like' becomes 'as'.
'being around' means one lot of letters goes inside another.
'flipping' shows that the letters should be reversed in order.
'ten' backwards is 'net'.
'as' enclosing 'net' is 'anets'.
'cast'+'anets'='CASTANETS'
(Other definitions for castanets that I've seen before include "Clicking percussion instruments" , "Wooden percussion instrument" , "Flamenco clappers?" , "kitchen need?" .)