Press triumph over Democrat (5)
I believe the answer is:
crowd
'press' is the definition.
(thesaurus)
'triumph over democrat' is the wordplay.
'triumph' becomes 'crow' ('crow' can be a synonym of 'triumph').
'over' is a charade indicator (letters next to each other).
'democrat' becomes 'd'.
'crow'+'d'='CROWD'
(Other definitions for crowd that I've seen before include "Large group of people" , "Horde" , "Masses" , "Mob of people" , "Social set" .)