### Clue: Revolutionary nut case lost in confusion (11)
### Answer: SANSCULOTTE 
 ### Explanation: Definition: Revolutionary
 **Anagram of**(in confusion) NUT CASE LOST.
Answer:  An extreme revolutionary, from the time of the French Revolution, literally "without knee breeches" applied derogatively by the aristocracy to the peasant revolutionaries, but later proudly adopted by the latter.