Related Clues:

• House where some wear glasses
• Price performance?
• 'Martha' or 'Norma'
• 'Manon' or 'Mignon'
• ''Fidelio,'' e.g.
• ''Carmen'' or ''Norma''
• Type of glasses
• Phantom's haunt
• ''Il Trovatore,'' for one
• 'Fidelio,' for one
• Word with soap or horse
• Met piece
• La Scala show
• Phantom's place
• Sometimes it's grand