English bishop finds sin (3)
I believe the answer is:
err
'sin' is the definition.
(to sin is to err morally)
'english bishop' is the wordplay.
'english' becomes 'e' (abbreviation).
'bishop' becomes 'rr' (abbreviation for Right Reverend).
'e'+'rr'='ERR'
'finds' is the link.
(Other definitions for err that I've seen before include "Make mistakes" , "Go astray" , "Make a wrong move" , "Drop a clanger" , "Go wrong" .)