Capitulate (7)
I believe the answer is:
succumb
'capitulate' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for succumb that I've seen before include "Give way to superior force" , "Give in, yield" , "Be fatally overwhelmed" , "Fail to resist (temptation, perhaps)" , "Give way or sink under pressure" .)