Possible Clues:

• Cooked meats home help carved on lake
• Delicatessen or the meats sold in it
• Cleaner and smarter - that's cold food!
• Blair maintains Conservative leader in a hopeless situation where cuts promised
• Cold cooked meats shop
• Alastair's outside with joint, meeting Blair where meat is sold
• After fish and a slice of the cake, land up with cold meats
• Tea sweeter that's in shop abroad
• Fish that's more appealing that's sold in the deli
• Shop cleaner needing to reduce huge volume of water!