Related Clues:

• Some artwork
• Works on walls
• Met set
• La Scala offerings
• Puccini works, e.g.
• Master works
• Palais Garnier offerings
• Covent Garden offerings
• They may be essential
• Wagner works
• Finds at Pompeii
• Works at the Louvre
• Vegetable and mineral
• Some Van Gogh works
• Stops from squeaking