Canines and molars (5)
I believe the answer is:
teeth
'canines and molars' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for teeth that I've seen before include "Incisors maybe" , "Gearwheel projections" , "Bony structures for eating" , "Structures in the jaw" , "rarely a hen's" .)