Fluffy neckpiece (3)
I believe the answer is:
boa
'fluffy neckpiece' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for boa that I've seen before include "Large constricting snake" , "One covered in scales" , "Large snake provides a neck decoration" , "One who puts the squeeze on" , "Snake; feather stole" .)