Related Clues:

• House work?
• ''The Barber of Seville,'' e.g.
• Kiri Te Kanawa's milieu
• Ring part
• ''Aida'' or ''Tosca''
• Social event
• Works
• See 18-Across
• Mozart work
• ''Billy Budd'' for one
• What the fat lady sings
• Word with horse or soap
• ''Norma'' or ''Tosca''
• Met production
• "Carmen" for one