agitator

1. N-COUNT If you describe someone involved in politics as an agitator, you disapprove of them because of the trouble they cause in organizing campaigns and protests. 鼓動者; 煽動者[oft supp N] [表不滿]

...a famous actress who was accused of being a political agitator. ...被指控爲政治鼓動者的著名女縯員。