Related Clues:

• Works on walls
• Master works
• They may be essential
• Works at the Louvre
• Vegetable and mineral
• Some Van Gogh works
• Stops from squeaking
• Artist's choice
• Stops a squeak
• 'Essential' things
• Traditional paintings
• Alternative to watercolors
• Many impressionist works
• Monet order?
• Aromatherapist's substances