Pulitzer-winning author James (4)
I believe the answer is:
agee
'pulitzer-winning author james' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for agee that I've seen before include "off the straight at Gleneagles" , "off the straight on Princes Street" , "American writer" , "In Ayr not straight" .)