Answer: insurgent

AnswerCrossword Clue
INSURGENTRebel
INSURGENTRebellious elected officials calling for immediate attention (9)
INSURGENTYoung Turk, e.g.
INSURGENTGuerrilla fighter
insurgentOf or relating to rebels
insurgentRising in active revolt
insurgentrising up / a person who rises in opposition to established authority; a rebel