Gaunt-looking writer (7)
I believe the answer is:
haggard
This clue could be a double definition.
'gaunt' is the first definition.
(I know that gaunt can be written as haggard)
'looking writer' is the second definition.
'haggard' can be an answer for 'writer' (I've seen this before). I'm not certain of the 'looking' bit.
Can you help me to learn more?
(Other definitions for haggard that I've seen before include "Looking worn and exhausted" , "Farm building for storing crops" , "looking emaciated" , "Rider" , "Drawn, careworn" .)