Possible Clues:

• She'll miss a sitter?
• Tear in bits, about to sit up for the performance.
• Attires for professional entertainer
• The performer that Arthur ties in a knot
• Attires (anag.)
• The person painting European entertainer
• Entertainer taking to stand holding ends of trumpet apart
• One like Picasso faces Einstein the performer
• A public performer
• Performer: new star I take tips from