### Clue: A ninja, might you say, in Chinese republic (3,6)
### Answer: SAN MARINO 
 ### Explanation: Definition: republic
 { A N… + MAR[to injure, in turn a **homophone of**(might you say) "…inja"] } **contained in**(in) SINO-( a prefix used to refer to China).
Defn: …, smallest in the world, and surrounded by Italy.