### Clue: Pen name for Proust's hero (5)
### Answer: SWANN 
 ### Explanation: Definition: Proust's hero 
 SWAN(the female of which is a Pen) + N(abbrev. for name).
Answer: The hero in "Swann's Way" the first book of French novelist, Marcel Proust's multi-part work "In Search of Lost Time", earlier translated as "Remembrance of Things Past".