Possible Clues:

• Handel piece, e.g.
• Address to Manx cat by 8 across 1s, maybe
• Address to cat in sound work
• Breathed's penguin
• Music with a number
• Hollywood's Holland had one
• "Mr. Holland's ___" (1995 Dreyfuss film)
• Novel or symphony
• 'Work with us, no matter what (4)'
• Magnum --