Taunt or bait (5)
I believe the answer is:
tease
I believe this is a double definition.
'taunt' is the first definition.
(I know that taunt can be written as tease)
'bait' is the second definition.
(I know that bait can be written as tease)
(Other definitions for tease that I've seen before include "Banter, provoke gently" , "Cod" , "Twit - flirt" , "Gently make fun of (someone)" , "Rag" .)