Possible Clues:

• Tonsorial work
• Barber's offerings
• Trims
• Musical edit applied to the start of Samuel Barber's work?
• Clips of omissions from a hippie classic?
• Maybe helmet's protecting Irish copper in top operations
• Tops off?
• Stocked by seafront supermarkets, they're top styles
• Buzz and trim
• Barbers' services