Related Clues:

• Sir or madam
• Property title
• ''The Odd Couple,'' e.g.
• Best-seller list entry
• Appellation
• Line on a spine
• Earl or viscount
• Ownership papers
• Kind of role
• Every song has one
• Championship
• Homeowner's title
• Quitclaim
• Boy Scout's undertaking
• It's been done