### Clue: Rude Posh attends dance club, sure to get thrown out (12)
### Answer: DISCOURTEOUS 
 ### Explanation: Definition: Rude
  U(posh,$$u$$pper-class) **contained in**(attends) {DISCO(dance club rampant in the 70s) **plus** **anagram of**(get thrown out) SURE TO}