Minister soft on crime (6)
I believe the answer is:
parson
'minister' is the definition.
('parson' can be a synonym of 'minister')
'soft on crime' is the wordplay.
'soft' becomes 'p' (musical abbreviation for 'piano').
'on' is a charade indicator (letters next to each other).
'crime' becomes 'arson' (I've seen this before).
'p'+'arson'='PARSON'
(Other definitions for parson that I've seen before include "Minister of religion" , "Rector; clergyman" , "Churchman" , "A rector or vicar" , "service provider" .)