The speaker's fashion house (5)
I believe the answer is:
manor
'house' is the definition.
(manor house is a kind of house)
'the speaker's fashion' is the wordplay.
'the speaker's' indicates a 'sounds like' (homophone) clue (as it might sound when spoken).
'fashion' becomes 'manner' (synonyms).
'manner' is a homophone of 'MANOR'.
(Other definitions for manor that I've seen before include "Large country house with lands" , "Grand country house" , "house on estate" , "Grand but strange Roman house" , "Big house - police district" .)