Tears with the teeth (5)
I believe the answer is:
bites
'tears with the teeth' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bites that I've seen before include "Breaks with the teeth" , "Tears with the teeth" , "Nips to" , "Stings" , "Mouthfuls" .)