Bushy hairstyle (4)
I believe the answer is:
afro
'bushy hairstyle' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for afro that I've seen before include "Curly hairstyle" , "One cut" , "Tightly-curled 4 down" , "Bushy hairstyle" , "little Malian, for example" .)