Feathery neckpiece (3)
I believe the answer is:
boa
'feathery neckpiece' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for boa that I've seen before include "... cold-blooded creature" , "Fluffy scarf of feathers" , "native American" , "Feathered neckwear - snake" , "that's dangerous for South Americans" .)