activist, agent provocateur, agitprop, beater, blender, brawler, catalyst, cement mixer, churn, crucible, demagogue, eggbeater, emulsifier, exciter, extremist, firebrand, fomenter, frondeur, incendiary, inciter, inflamer, instigator, insubordinate, insurgent, insurrectionary, insurrectionist, insurrecto, jiggler, malcontent, maverick, melting pot, mischief-maker, mixer, mover, mutineer, nonconformist, paddle, provocateur, provoker, rabble-rouser, rebel, revolter, revolutionary, revolutionist, ringleader, rioter, rouser, seditionary, seditionist, shaker, subversive, traitor, troublemaker, urger, vibrator, whisk