Possible Clues:

• Another drink
• Judge badly, having another drink
• The referee being indisposed, here's a substitute
• It might make Whistler sick to have another lot in him
• Another drink could make judge sick
• Request at a bar
• 'The sporting judge being indisposed, here's a substitute (6)'
• Charge again
• Top up
• About trouble in fairy tale that can be replenished