Answer: IRE

AnswerCrossword Clue
IREIncense
IRESoreness
IRE(D)ang(l)er (from a tree in the yard)
IREHothead's feeling, often
IREPissiness
IREPissed-offness
IREPissedness
IREDudgeon
IREHigh dudgeon
IREMood while hopping?
IREFiery emotion
IRERage
IREDispleasure squared
IREFurious feeling
IREAnnoyance plus
IREAngry feeling
IREHotheadedness
IREPique condition?
IREIll temper
IREIt might be aroused
ireanger
IRECork loc.
IREFury
IREIndignation
IREIntense anger
IREMiff
IREPique
IREResentment
IRESpleen
IRETick off
IREWrath
IREDander
IREGet one's gander
IREMake mad
IRERuffle one's feathers
IRECholer
IREPique experience
IREHostility
IREDisgruntlement
IREAnger