Related Clues:

• Theme of this puzzle
• Services, in a way
• Works at the Met
• La Scala productions
• Some Mozart art
• Canvas cover
• Takes care of the squeaky wheel
• 'Wozzeck' and 'Jenufa'
• Musical works
• Works by 26-Down
• Some paintings
• Portraitist's medium
• Rembrandts, e.g.
• Squelches a squeak
• Big pictures