Tired feeling (9)
I believe the answer is:
weariness
'tired feeling' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for weariness that I've seen before include "Fatigue, tiredness" , "Tired feeling" , "State of fatigue or utter boredom" , "Lassitude" , "Lack of energy" .)