instigator Synonyms

inciter initiator provoker firebrand instigant troublemaker arouser provocateur agent provocateur hothead orchestrator driving force source stimulator stirrer suborner torchbearer urger warmonger catalyst initial force creator soapbox orator agitators motive force rabble rouser power source kindle-fire straw that stirs the drink prime mover mover and shaker motivator groundbreaker loose cannon tearaway mastermind hellion attack dog shaper rouser fomenter fanner exciter encourager egger designer demagogue causer brewer author