Other crossword clues for answer "WHISTLE"WHISTLEGym teacher's needRef's toolPlay halter, oftenBlow the ___Ref's needBe cheerfulAct unafraid, perhapsReferee's game-stopping deviceWhat a referee blows intoRef's accessorySound from a zebra?Play halterModern expression of approval.Advice to workers from the Seven Dwarfs.Play stopper