Novelist Tolstoy (3)
I believe the answer is:
leo
'novelist 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 "Lion constellation" , "Name taken by 13 popes, the last dying in 1903 aged 93" , "5th sign of the zodiac" , "Singer-songwriter Sayer, b. 1949" , "born in July or August" .)