The area where Patrick goes to church (5)
I believe the answer is:
patch
'the area' is the definition.
(patch is a kind of area)
'patrick goes to church' is the wordplay.
'patrick' becomes 'pat' (I've seen this in other clues).
'goes to' says to put letters next to each other.
'church' becomes 'ch' (common abbreviation).
'pat'+'ch'='PATCH'
'where' acts as a link.
(Other definitions for patch that I've seen before include "Covering material" , "Piece of material used to cover hole in clothes" , "Piece of cloth as decoration or to cover a hole" , "Piece of sewn-on material" , "Piece of land, of mending material" .)