Possible Clues:

• Reworked Monet or Paris impressionist
• One pretending to be another
• Mimic
• Man with posterior spreading tries to be like someone else
• One doing another operation, Mrs Bent
• One's often acting in some part or other
• Commander has captured young male ape
• One hopes to make a good impression on stage
• In trouble, poor man tries to become fraudster with new identity
• Entertainer making many appearances?