Related Clues:

• Sound from a nook, perhaps
• Attention-getter, in a theater
• Sound that gets attention
• Call that's whispered
• Sound from a cheater
• Whispered entreaty
• 'Hey you--over here!'
• It's often spoken with one hand at the edge of one's mouth
• Don't tell anyone bishop's stashing bottles
• Covert 'Hey!'
• Cheater's sound at test time
• Secretive "Check this out!"
• Singer's nemesis
• Do as the doctor says
• Interjection to attract someone's attention without alerting others