A bishop has the answer, redemption (10)
I believe the answer is:
absolution
'redemption' is the definition.
(absolution is a kind of redemption)
'a bishop has the answer' is the wordplay.
'bishop' becomes 'B' (abbreviation for bishop in chess).
'has' means one lot of letters go next to another.
'the answer' becomes 'solution' (synonyms).
'a'+'b'+'solution'='ABSOLUTION'
(Other definitions for absolution that I've seen before include "Release from guilt" , "Forgiveness" , "discharge" , "pardon" , "acquittal" .)