Search Result for "provoker": 
Wordnet 3.0

NOUN (1)

1. someone who deliberately foments trouble;
- Example: "she was the instigator of their quarrel"
[syn: instigator, provoker, inciter, instigant, firebrand]



WordNet (r) 3.0 (2006):

provoker
    n 1: someone who deliberately foments trouble; "she was the
         instigator of their quarrel" [syn: instigator,
         provoker, inciter, instigant, firebrand]