Do escape church (6)
I believe the answer is:
fleece
'do' is the definition.
(both can mean to scam)
'escape church' is the wordplay.
'escape' becomes 'flee' (I've seen this before).
'church' becomes 'ce' (abbreviation for Church of England).
'flee'+'ce'='FLEECE'
(Other definitions for fleece that I've seen before include "Sheepskin - rook" , "Do some asset stripping" , "Wool coat" , "Defraud in woolly way" , "Sheepskin - take to the cleaners" .)