Related Clues:

• 'You there!'
• "Hey, Mister!"
• Clandestine signal
• Surreptitious sound
• Private address?
• Post-dubbing title
• "Hey, Mac!"
• Ringo, for one
• Secretive attention getter
• Knightly honorific
• Address for Ben Kingsley
• Respectful address
• Fence’s utterance
• 'Hey, over here!'
• Formal address