Answer: WHISTLE

AnswerCrossword Clue
whistleto demand or expect without success
whistlethe sound of whistling
whistleto take a drink
whistleto expose (wrongdoing or wrongdoers)
whistledevice for making such sounds
whistlesound that resembles a whistle
whistleshrill clear sound produced by forcing breath out or air in through the puckered lips
whistleto attempt to summon up one's courage or optimism in a difficult situation
whistleshrill clear note of or as if of a bird
whistlesignal given by or as if by whistling
whistleto bring a stop to; halt
whistleto make a high clear sound with breath, air, or steam
whistleto expose the existence of mischief or wrongdoing
whistlea small wind instrument in which sound is produced by the forcible passage of breath through a slit in a short tube a police whistle
WHISTLEAct unafraid, perhaps
whistledevice through which air or steam is forced into a cavity or against a thin edge to produce a loud sound a factory whistle
whistleto make a shrill sound
WHISTLEOne thing to blow
WHISTLEPlay stopper
WHISTLEAdvice to workers from the Seven Dwarfs.
WHISTLEModern expression of approval.
WHISTLEPlay halter
WHISTLESound from a zebra?
WHISTLEReferee's game-stopping device
WHISTLEBe cheerful
WHISTLERef's need
WHISTLEBlow the ...