Related Clues:

• High male voice
• Juliet, e.g., in Gounod's 'Romeo and Juliet'
• Tiny Tim, for one
• Castrato's register, perhaps
• Aida, for one
• One who might hit an 83-Down
• Singing range for castrati, often
• Something funny to sing in
• Vocal style of 10-/25-Down, at times
• Opera heroine, often
• Top line on a chorale
• Something to sing in
• Artificial high voice
• Voice above the rest
• ...and so is this