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
fighterperson who struggles, resists, etc.
fighteraircraft designed to seek out and destroy enemy aircraft
fighteraggressive animal, as a dog
fighterone who fights (to contend in war, battle or single combat)
fighterboxer; pugilist
fighterperson with the will, courage, determination, ability, or disposition to struggle, resist, etc.