Related Clues:

• Single
• Horne solo
• See 1-Across
• Whist variety
• Aeronautics achievement
• 'Summertime,' e.g., in 'Porgy and Bess'
• Pavarotti piece
• Stage solo
• Aria, usually
• Battle strain?
• Bartoli performance
• See 28-Down
• Operatic solo
• 'Toreador Song,' e.g., in 'Carmen'
• Single-handed