Crew leaving show, inevitably (8)
I believe the answer is:
perforce
'inevitably' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for perforce that I've seen before include "Old word for necessarily, due to circumstances" , "Unavoidably" , "Necessarily; inevitably" , "By force of circumstance, necessarily" , "Necessarily, arising from free crop" .)