Inside a convent shelters a churchman (6)
I believe the answer is:
'a churchman' is the definition.
(I've seen this before)
'inside a convent shelters' is the wordplay.
'shelters' indicates the answer is hidden within the clue.
'DEACON' is hidden within 'inside a convent'.
(Other definitions for deacon that I've seen before include "Cleric - canoed (anag)" , "Clergyman of low rank" , "Rank of clergy" , "Layman attending to church duties" , "Churchman" .)