### Clue: One last night of debauchery, then pray for rehabilitation (3,5)
### Answer: HEN PARTY 
 ### Explanation: Definition: One last night of debauchery
  **Anagram of**(for rehabilitation) THEN PRAY
Defn: The female equivalent of the stag night, one last night before the wedding (after which there is rehabilitation?) – debauchery depending on the amount of alcohol and the presence of male strippers and such.  I hasten to add this doesn't imply that it happens all the time (I think) – might the setter draw some flak for not putting a question mark after "debauchery"?  🙂 A great WIWD