Not looking good at all (4)
I believe the answer is:
grim
'not looking good at all' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for grim that I've seen before include "Resolute" , "Unrelentingly harsh" , "Dour, forbidding" , "The - Reaper is death" , "Dour and severe" .)