Got a new garment (4)
I believe the answer is:
toga
'garment' is the definition.
(toga is a kind of garment)
'got a new' is the wordplay.
'new' indicates anagramming the letters.
'got'+'a'='gota'
'gota' with letters rearranged gives 'TOGA'.
(Other definitions for toga that I've seen before include "Garment worn by men in ancient Rome" , "One-piece Roman wrap" , "garment of old" , "Roman tunic" , "Cloak of ancient Rome" .)