Answer: poisoner

AnswerCrossword Clue
POISONERArsenic user, maybe
POISONERWord for the witch in "Snow White."
POISONERWhodunit villain.
POISONERNero or Claudius.
POISONERAunt in "Arsenic and Old Lace"
POISONERVenom injector, e.g.
poisonerone that poisons (to administer a killing substance to)
poisonersubstance that kills or harms seriously
poisonerto kill or injure with poison
poisonerto put poison in or on