Pole accepts the church over style and ornamentation (5)
I believe the answer is:
decor
'style and ornamentation' is the definition.
(decoration)
'pole accepts the church over' is the wordplay.
'pole' becomes 'rod' (synonyms).
'accepts' indicates putting letters inside.
'the church' becomes 'CE' (abbreviation for Church of England).
'over' shows that the letters should be reversed in order.
'rod' placed around 'ce' is 'roced'.
'roced' written backwards gives 'DECOR'.
(Other definitions for decor that I've seen before include "Style of furnishing etc used in room" , "Credo (anag.)" , "Interior colour scheme and furnishing" , "Interior design; stage scenery" , "(Room) design" .)