Clothing item (6)
(Other definitions for topcoat that I've seen before include "Final layer of paint" , "Ulster?" , "Heavy winter outer garment" , "clothing" , "It's worn on the outside in winter" .)
'clothing item' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for garment that I've seen before include "dress, perhaps" , "coat maybe" , "Covering" , "stole, perhaps" , "Something put on" .)
'clothing item' is the definition.
(I know that jacket is a type of clothing item)
This is all the clue.
(Other definitions for jacket that I've seen before include "Book cover" , "Outer skin of a potato" , "Record sleeve" , "Short coat or outer skin" , "Outer garment or casing" .)
(Another definition for sports jacket that I've seen is " Casual garment".)