Actor and medic slammed by The People (10)
I believe the answer is:
democratic
'by the people' is the definition.
(democracy is government by the people)
'actor and medic slammed' is the wordplay.
'and' says to put letters next to each other.
'slammed' indicates anagramming the letters.
'actor'+'medic'='actormedic'
'actormedic' is an anagram of 'DEMOCRATIC'.
(Other definitions for democratic that I've seen before include "23 [JFK] was" , "Egalitarian" , "party in US" , "Enabling the will of the people" , "Popular" .)