Answer: battler

AnswerCrossword Clue
BATTLEROne who doesn't quit
BATTLERHe won't quit
BATTLERFighter.
BATTLERDogged fighter.
BATTLERCombatant.
BATTLERPugilist
BATTLERScrappy fellow
BATTLERFighting type
BATTLERCombatant
BATTLEROne on the front line
battlerA person who refuses to admit defeat in the face of difficulty
battlerone who battles (to fight (to contend in war, battle or single combat))
battlerA person who battles or fights