Possible Clues:

• Clinic ends telecast with '50% reductions for customers'
• Right contact number in this French business
• One excellent change, but that's lost ten customers
• A shop's customers
• Patronising people of reduced intellect, ruined by drug
• Regulars, right before time, almost preferred returning outside
• Elect representation to enshrine a legal right for customers
• Customers needing most of nicely polished box
• Clients collectively
• Oddly elect to retain right to hold property for customers