Censure argument against democratic state (12)
I believe the answer is:
condemnation
'censure' is the definition.
(synonyms)
'argument against democratic state' is the wordplay.
'argument against' becomes 'con' (as in pros and cons).
'democratic' becomes 'dem' (political abbreviation).
'state' becomes 'nation' (both can mean a country).
'con'+'dem'+'nation'='CONDEMNATION'
(Other definitions for condemnation that I've seen before include "criticism" , "Complete disapproval" , "Censure" .)