Answer: dehorner

AnswerCrossword Clue
DEHORNERStripper of antlers.
dehornerto prevent the formation or growth of horns in (cattle), as by cauterization
dehornerto remove the horns of (cattle)
dehornerone that dehorns (to deprive of horns)
dehornerto prune (a tree, shrub, etc.) by shortening major branches to an extreme degree