Hopeless feeling (7)
I believe the answer is:
despair
'hopeless feeling' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for despair that I've seen before include "Hopeless" , "State of having lost all hope" , "Misery" , "Praised (anag) - lose hope" , "A spider (anag.)" .)