Related Clues:

• 'But is it ___?'
• Word with collection or class
• Restorer's concern
• Word with pop or op
• Etchings, paintings, etc.
• Seduction, for example
• 28-Across, e.g.
• Considerable amount
• Museum collection
• ''Jealous mistress,'' to Emerson
• Drawings
• Prints and paintings
• Bust, maybe
• Picassos, e.g.
• Graffiti, to some