### Clue: Loses one's rag? Not on! (5)
### Answer: RAGES 
 ### Explanation: Definition: Loses one's rag
 **Anagram of**(Loses) "one's rag " **minus**(Not) "on ".
Defn: An idiom for "to lose one's temper". And of course such behaviour is unacceptable;not on. A nice WIWD(wordplay intertwined with defn.) clue.