Related Clues:

• Horse __
• La Scala production
• Puccini creation
• Phantom's passion
• Ring feature
• Kind of house or glasses
• Domingo's domain
• Diva's performance
• Met music
• ''Nixon in China'', e.g.
• Handel's ''Lotario,'' e.g.
• Haunt of a certain phantom
• 6-Across, e.g.
• Work with a libretto
• Precious thing