Write to the church for money (5)
I believe the answer is:
pence
'money' is the definition.
(I've seen this before)
'write to the church' is the wordplay.
'write' becomes 'pen' (synonyms).
'to the church' becomes 'CE' (abbreviation for Church of England).
'pen'+'ce'='PENCE'
'for' is the link.
(Other definitions for pence that I've seen before include "Small change" , "little money" , "some European capital" , "Old coins" , "Old money for the US vice-president" .)