Possible Clues:

• Broadway musical based on an American comic strip
• Berlin sharpshooter's orphan
• Murphy of 'Schitt's Creek'
• Pop singer Lennox
• Celebrity photographer Leibovitz
• Lennox or Leibovitz
• 'It's the Hard Knock Life' musical
• Etonian nasty, but not to woman
• Musical girl?
• Musical with the song 'You're Never Fully Dressed Without a Smile'