Religious leader may remit sin on conversion (8)
I believe the answer is:
minister
'religious leader' is the definition.
'minister' can be an answer for 'leader' (minister is a kind of leader). I am not sure about the 'religious' bit.
'remit sin on conversion' is the wordplay.
'on' is a charade indicator (letters next to each other).
'conversion' indicates anagramming the letters.
'remit'+'sin'='remitsin'
'remitsin' is an anagram of 'MINISTER'.
'may' is the link.
Can you help me to learn more?
(Other definitions for minister that I've seen before include "Parson" , "Tend" , "supply as before" , "Member of the clergy or of the Front Bench" , "Senior politician" .)