Related Clues:

• Stops squeaking
• Rembrandt's output
• Tends to a squeak
• Some are essential
• Rembrandt's medium
• Greases
• Reduces friction, in a way
• Met works
• Bathwater additives
• Cooks with fat
• Artist's medium
• Manet medium
• Artist's media, perhaps
• Classical paintings
• Certain paintings