### Clue: Wine can destroy 50s dress (4)
### Answer: SACK 
 ### Explanation: Definition: Wine,destroy,50s dress
  Triple defn:  1st:  Type of wine from Spain and Canary Islands, or any dry white wine from SW Europe; 2nd:  Destroy a city after conquest.  3rd:  A plain dress that was fashionable in the 50s and looked like its namesake, ie. straight down from shoulder to hem.