### Clue: Man impressed to have left sport, quiet epic hero (9)
### Answer: GILGAMESH 
 ### Explanation: Definition: epic hero
referring to the ancient poem *The Epic of Gilgamesh* 
 **GI** (soldier, someone "impressed" i.e. pressed into military service) + **L** (left) + **GAME**="sport" +** SH**="[be] quiet"