Possible Clues:

• Montmartre frequenter
• A sitter for creative person
• Entertainer, singer or dancer
• Theatrical entertainer
• Performer's way to get into Shaw
• A sitter could be a performer
• Painter needs energy to become an entertainer
• Entertainer and French model seen at Royal Academy retrospective
• Entertainer's attire's been adjusted
• Bogart is terrific in part as nightclub entertainer?