Answer:

fighter

AnswerCrossword Clue
FIGHTEROne in a ring
FIGHTERCombatant
FIGHTERPursuit plane.
FIGHTERType of plane.
FIGHTERKind of aircraft.
FIGHTERSpad or Fokke
FIGHTERForeman's job, before grill pitchman
FIGHTEROne in a boxing ring
FIGHTERBoxer, for one