Church passageway (5)
I believe the answer is:
aisle
'church passageway' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for aisle that I've seen before include "that would-be bride hopes to make it up!" , "'Passage, gangway (5)'" , "Corridor" , "Extension of the nave in a church" , "Division of the nave in church" .)