Church wine, never dull bottles (5-4)
I believe the answer is:
notre-dame
'church' is the definition.
(I've seen this before)
'wine never dull bottles' is the wordplay.
'wine' becomes 'red wine' (red is a type of wine).
'never' becomes 'no' (I've seen this in other clues).
'dull' becomes 'tame' (both can mean boring).
'bottles' is an insertion indicator (to bottle can mean to contain).
'no'+'tame'='notame'
'red' inserted within 'notame' is 'NOTRE-DAME'.
(Other definitions for notre-dame that I've seen before include "Parisian building" , "tourist spot" .)