Possible Clues:

• One may go to pot, seeing most of side on reserve
• Darjeeling pouch
• Source of a cuppa
• Drink maker on a string (2 words)
• Packet of leaves
• It's always getting into hot water
• Leinster- briefly carried by Porter - has a good chance of being left in The Cup
• Revolutionary chat after extra time and one could end up in hot water
• Sachet for cuppa
• Something dunked at dinner