Match found in pea green (5)
I believe the answer is:
agree
'match' is the definition.
(agreeing is a kind of matching)
'in pea green' is the wordplay.
'in' says the answer is hidden in the clue.
'AGREE' is hidden within 'pea green'.
'found' acts as a link.
(Other definitions for agree that I've seen before include "Say yes to a suggestion" , "Concur, acquiesce" , "get on" , "Settle" , "grant" .)