Related Clues:

• Polite address
• 'My dear man'
• Madam's counterpart
• 'To ___ With Love'
• 'Hey you!'
• Whispered sound
• Army address
• Polite term of address
• Street peddler's opener?
• Attention getter
• Camelot honorific
• Attention-getting sound
• Dear one?
• Elton John's title
• See 61-Across