### Clue: Returning hero knows Scots writer (7)
### Answer: DICKENS 
 ### Explanation: Definition: writer

**<=CID** (returning "hero") + **KENS **("knows" in "Scots")
 
*CID refers to El Cid, the nickname given by the Moors to the 11th century Castilian knight, Rodrigo Diaz de Vivar.