Layered hairstyle (4)
I believe the answer is:
shag
'layered hairstyle' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for shag that I've seen before include "Green cormorant" , "Bird - dance" , "Kind of cormorant - tobacco" , "Diver" , "flighty creature" .)