Yield, give in (6)
I believe the answer is:
relent
This clue is a double definition.
'yield' is the first definition.
(I know that yield can be written as relent)
'give in' is the second definition.
(I've seen this before)
(Other definitions for relent that I've seen before include "Be merciful" , "Become less intense" , "Be more lenient, abandon harsh intentions" , "Become less stern than intended" , "Capitulate" .)