Say yes to a cold pint after church (6)
I believe the answer is:
accept
'say yes to' is the definition.
(I've seen this before)
'a cold pint after church' is the wordplay.
'a cold' becomes 'ac' (I've seen this in other clues**).
'pint' becomes 'pt'.
'after' means one lot of letters go next to another.
'church' becomes 'ce' (abbreviation for Church of England).
'pt' after 'ce' is 'cept'.
'ac'+'cept'='ACCEPT'
(Other definitions for accept that I've seen before include "Take -- consent" , "Put up with" , "Receive the gift or agree to comply" , "Reply in the affirmative" , "Believe to be valid" .)