provoker

英[prə'vəʊkə] 美[prə'vəʊkə]
  • n.挑衅者
  • aggressive adj.侵略的;进攻性的;好斗的;有进取心的
  • water n.水;海域;雨水;海水v.给...浇水;给...供水;加水稀释;充满眼泪;给...水喝
Noun:
  1. someone who deliberately foments trouble;

    "she was the instigator of their quarrel"