Unhappy, urge into action (9)
I believe the answer is:
depressed
'unhappy' is the definition.
(thesaurus)
'urge into action' is the wordplay.
'urge' becomes 'press' (synonyms).
'into' is an insertion indicator.
'action' becomes 'deed' (deed is a kind of action).
'press' placed into 'deed' is 'DEPRESSED'.
(Other definitions for depressed that I've seen before include "Poverty-stricken" , "Having been pushed down" , "25 [BLUE]" , "showing the blues" , "Unhappy, despondent" .)