Answer: nettler

AnswerCrossword Clue
NETTLEROne who irritates.
NETTLERHeckler.
NETTLERIrritating fellow.
NETTLERVexatious person
NETTLERProvoking person
NETTLERIrritant
nettlerto irritate; sting
nettlerone that nettles (to make angry (feeling hostility))
nettlerplant with stinging hairs