Related Clues:

• Loon's lack
• ''Fidelio'' for one
• Have a gut feeling
• Simpleton's lack
• It may be light or grand
• Brainpower
• ''Fidelio'' is one
• Wall Street employee
• Giacomo Puccini's work
• 'Nixon in China,' for one
• Sixth follower
• Massenet offering
• Kathleen Battle's bag
• Butterfly locale?
• Covent Garden event