Author ____ Tolstoy (3)
I believe the answer is:
leo
'author tolstoy' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for leo that I've seen before include "of pride" , "Name taken by 13 popes, the last dying in 1903 aged 93" , "Lion sign of the Zodiac" , "MGM's lion" , "5th sign of the zodiac" .)