Central part of a church (4)
I believe the answer is:
nave
'central part of a church' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nave that I've seen before include "Central space in church" , "Central part of church" , "Central area in a church" , "Part of a church sounds roguish" , "Take no risks" .)