Church pursuing writer for money (5)
I believe the answer is:
pence
'for money' is the definition.
(I've seen this before)
'church pursuing writer' is the wordplay.
'church' becomes 'ce' (abbreviation for Church of England).
'pursuing' is a charade indicator (letters next to each other).
'writer' becomes 'pen' (something which writes).
'ce' put after 'pen' is 'PENCE'.
(Other definitions for pence that I've seen before include "Small coppers" , "British coins" , "Fractions of a pound" , "some European capital" , "President's vice" .)