Mock or jeer (5)
I believe the answer is:
taunt
I believe this is a double definition.
'mock' is the first definition.
(I know that taunt is a type of mock)
'jeer' is the second definition.
(I've seen this before)
(Other definitions for taunt that I've seen before include "Jeering remark" , "Make fun of" , "Twit" , "Rag, goad" , "Mock, jeer" .)