Jeers, mocks (6)
I believe the answer is:
taunts
I believe this clue is a double definition.
'jeers' is the first definition.
(I've seen this in another clue)
'mocks' is the second definition.
(taunting is a kind of mocking)
(Other definitions for taunts that I've seen before include "Jeers, mocks" , "Provokes -- a stunt (anag)" , "digs" , "Mocks, derides" , "Jibes" .)