"Hell is other people” writer (6)
I believe the answer is:
sartre
'hell is other people writer' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sartre that I've seen before include "Jean-Paul --, French author and philosopher" , "French existentialist philosopher and writer" , "Sooner" , "French philosopher, 1905-80" , "Jean-Paul ___, French existentialist, d. 1980" .)