Related Clues:

• Polite address
• 'My dear man'
• Madam's counterpart
• 'To ___ With Love'
• Army address
• Polite term of address
• Camelot honorific
• Dear one?
• Elton John's title
• See 61-Across
• William Penn, for one
• Churchill, for one
• Arthur Conan Doyle title
• Oft-heard boot camp word
• Title of nobility