Talk about right dress (4)
I believe the answer is:
garb
'dress' is the definition.
(I know that dress can be written as garb)
'talk about right' is the wordplay.
'talk' becomes 'gab' (I've seen this in another clue).
'about' indicates putting letters inside.
'right' becomes 'r' (abbreviation).
'gab' going around 'r' is 'GARB'.
(Other definitions for garb that I've seen before include "Outfit" , "Style of clothing" , "Apparel, attire" , "Attire, clothing" , "Clothes to brag about" .)