Moose's horn (6)
I believe the answer is:
antler
'moose's horn' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for antler that I've seen before include "Horn maybe of 24" , "One on stag's head" , "Bony outgrowth in the deer family" , "Stag's horn" , "Part of a deer" .)