### Clue: In Oz, rabbit and retired horse live by river (6)
### Answer: YABBER 
 ### Explanation: Definition: In Oz, rabbit
 **Reversal of**(retired) BAY(a brown horse) + BE(to live/to exist) **plus**(by) R(abbrev. for "river").
Defn: …/chatter in the language of Oz/Australia.