Gossip just as wicked, originally (3)
I believe the answer is:
jaw
'gossip' is the definition.
(I know that gossip can be written as jaw)
'just as wicked originally' is the wordplay.
'originally' suggests taking the first letters.
The initial letters of 'just as wicked' is 'JAW'.
(Other definitions for jaw that I've seen before include "It frames the mouth and holds the teeth" , "Part of the head" , "Chat" , "Facial bone" , "Part of skull" .)