Related Clues:

• Book's name
• Duke or duchess
• Novelist's decision
• Sir or Dame, e.g.
• Boxer's aim
• Spine words
• A challenger might go after one
• What cover letters spell out?
• Words on a spine
• Decoration, in a way
• Marquee posting
• Sir or madam, as the case may be
• Name on a spine
• Dom or earl
• It may come with a belt