Question in church about acceptable fruit (6)
I believe the answer is:
quince
'fruit' is the definition.
(quince is a kind of fruit)
'question in church about acceptable' is the wordplay.
'question' becomes 'q'.
'church' becomes 'ce' (abbreviation for Church of England).
'about' means one lot of letters go next to another.
'acceptable' becomes 'u' ((Film classification)).
'in'+'ce'='ince'
'ince' after 'u' is 'uince'.
'q'+'uince'='QUINCE'
(Other definitions for quince that I've seen before include "Chips" , "Acid-flavoured fruit" , "Golden fruit" , "Peter --- (MND); fruit" , "Shakespearean part?" .)