House's fashion statement (5)
I believe the answer is:
manor
'house's' is the definition.
(manor is a kind of house)
'fashion statement' is the wordplay.
'fashion' becomes 'manner' (synonyms).
'statement' shows a homophone (sound like) (how it might sound when said or stated).
'manner' sounds like 'MANOR'.
(Other definitions for manor that I've seen before include "home territory" , "Roman (anag.)" , "Grand but strange Roman house" , "Grand country house" , "Country seat" .)