### Clue: Farage et al take legal action, upset over caper (4-3)
### Answer: EURO-MPS 
 ### Explanation: Definition: Farage et al
 **Reversal of**(…, upset) SUE(to take legal action against someone) **containing**(over) ROMP(a spell of lively activity, or sex, if you like;a caper).
Defn: …, Nigel and others, but not for long.