### Clue: Rubbish sparkling wine mostly drunk by partners (5)
### Answer: WASTE 
 ### Explanation: Definition: Rubbish
 "Asti"(a light sparkling wine from the Asti region in Italy) **minus ****its last letter**(… mostly) **contained in**(drunk by) W,E(abbrev. for "west" and "east", partners in the card game of bridge).