Coat belonging to Afghan or a Kazakh (6)
I believe the answer is:
anorak
'coat' is the definition.
(I know that anorak is a type of coat)
'belonging to afghan or a kazakh' is the wordplay.
'belonging to' indicates the answer is hidden within the clue (I've seen this in other clues).
'ANORAK' is hidden within 'afghan or a kazakh'.
(Other definitions for anorak that I've seen before include "Coat (for the boringly obsessive?)" , "trainspotter" , "Trivia obsessive" , "Coat - trivia expert?" , "Casual jacket with hood and zip" .)