Related Clues:

• Hair applications
• Services, in a way
• Works at the Met
• Canvas cover
• Salon supplies
• Takes care of the squeaky wheel
• Salon stuff
• Hardens
• Some paintings
• Portraitist's medium
• Rembrandts, e.g.
• Squelches a squeak
• Coagulates
• Standard varieties
• Rembrandt works