She’s writer looking run down (7)
I believe the answer is:
haggard
'down' is the definition.
Both the definition and answer are adjectives. Maybe they are linked in a way I don't understand?
'she's writer looking run' is the wordplay.
I cannot really see how this works, but
'run' could be 'r' (cricket abbreviation) and 'r' is present in the answer.
'she' could be 'ag' and 'ag' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for haggard that I've seen before include "Farm building for storing crops" , "Showing signs of overwork or suffering" , "She came from him" , "showing lack of sleep" , "Lean" .)