### Clue: Coming back, make fun of our group? That's annoying! (5)
### Answer: SUGAR 
 ### Explanation: Definition: That's annoying!
 **Reversal of**(Coming back) [RAG(to make fun of/to tease) + US(our group, in contrast to "them").
Defn: A euphemism for "shit", as an expression of annoyance, as in "Oh sugar! I just shat (or sugared??) in my pants!"