Reject striking actors (7)
I believe the answer is:
outcast
'reject' is the definition.
(I've seen this before)
'striking actors' is the wordplay.
'striking' becomes 'out' (striking out is a common phrase).
'actors' becomes 'cast' (I've seen this in another clue).
'out'+'cast'='OUTCAST'
(Other definitions for outcast that I've seen before include "One rejected by group" , "Rejected individual" , "Pariah, leper" , "One excluded from group" , "one's not admitted" .)