Writer Levin
I believe the answer is:
ira
'writer levin' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ira that I've seen before include "Gershwin, say" , "terrorists" , "Illegal organisation, initially" , "nationalists" , "George Gershwin's older brother, the lyricist" .)