Possible Clues:

• Routine fee taking in work
• Doctor's fee covering performance
• Use amount charged to restrict venture
• What's charged to cover part of play rehearsal?
• It makes perfect sacrifice, deed being hidden
• Requirement for sporting types in GPs' workplace
• Put law in charge: it makes everything perfect!
• Move to cut cost for routine
• Custom in remarkable Capri, etc.
• GP's business