Tear jaggedly (8)
I believe the answer is:
lacerate
'tear jaggedly' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lacerate that I've seen before include "Clare ate (anag)" , "Slash" , "Tear or make deep cuts" , "Cut or tear irregularly" , "Cut, leaving jagged edges" .)