### Clue: No-hoper in party admitting violation? Not initially (6)
### Answer: DRONGO 
 ### Explanation: Definition: No-hoper
  DO(a party,function,bash) **containing**(admitting) RONG{"wrong"(violation,offence) **minus** its first letter(not initially)}.
Answer: From slang-rich Oz, a slow-witted person,no-hoper, apparently derived from the name of an unsuccessful racehorse in the 1920s, which in turn could have been named after the bird.