Completely depressed Tory (9)
I believe the answer is:
downright
'completely' is the definition.
(thesaurus)
'depressed tory' is the wordplay.
'depressed' becomes 'down' ('down' can be a synonym of 'depressed').
'tory' becomes 'right' (I've seen this before).
'down'+'right'='DOWNRIGHT'
(Other definitions for downright that I've seen before include "Plain-spoken" , "Utter, complete" , "Utter, arrant" , "Absolutely!" , "blunt" .)