Related Clues:

• Op ___
• Imitative behavior
• Creative work
• Silly trick
• See 21-Across
• Knack
• Prints and such
• It's often left hanging
• Carney of 'The Honeymooners'
• Shakespearean verb
• Mimicking behavior
• 'Wherefore ___ thou Romeo?'
• Decorator's concern
• Met display
• Class in which posers are presented