Leave to get work in a successful show (3,2)
I believe the answer is:
hop it
'leave' is the definition.
(to hop it is to leave quickly)
'work in a successful show' is the wordplay.
'work' becomes 'op' (common abbreviation for 'opus').
'in' is an insertion indicator.
'a successful show' becomes 'hit' (I've seen this in another clue).
'op' placed into 'hit' is 'HOP IT'.
'to get' is the link.
(Other definitions for hop it that I've seen before include "Leave" , "Clear off!" , "shove off" , "Get away!" , "get lost" .)