Bishop has a blessing for monkey (6)
I believe the answer is:
baboon
'monkey' is the definition.
(baboon is a kind of monkey)
'bishop has a blessing' is the wordplay.
'bishop' becomes 'b' (abbreviation used in chess).
'has' is a charade indicator (letters next to each other).
'blessing' becomes 'boon' ('boon' can be a synonym of 'blessing').
'b'+'a'+'boon'='BABOON'
'for' is the link.
(Other definitions for baboon that I've seen before include "Large long-nosed African or Asian monkey" , "Type of large monkey" , "Ground-living primate" , "Uncouth type" , "animal" .)