Answer: quickthinking

AnswerCrossword Clue
QUICKTHINKINGHero's asset
QUICKTHINKING"That's using your head!"
QUICKTHINKINGIntelligence under pressure
QUICKTHINKINGMental agility
QUICKTHINKINGSkill useful for handling an emergency
QUICKTHINKINGSlim monarch who gets around fast? (3 wds.)