A soft felt hat (6)
I believe the answer is:
fedora
'a soft felt hat' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fedora that I've seen before include "Soft hat with band" , "Headgear" , "top fashion" , "Soft felt hat with a curled brim" , "Felt hat with a creased crown" .)