Answer: wreaked

AnswerCrossword Clue
WREAKEDUnleashed, as havoc
WREAKEDGave vent to.
WREAKEDEffected, in a bad way
WREAKEDCreated, as havoc
wreakedAvenge (someone who has been wronged)
wreakedCause (a large amount of damage or harm)
wreakedInflict (vengeance)