Of Mice and Men author (9)
I believe the answer is:
steinbeck
'of mice and men author' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for steinbeck that I've seen before include "20th century American author" , "US author" , "Of Mice and Men author" , "John ......, author of 'The Grapes of Wrath'" , "See 17" .)