Idle crowd unlikely to be tolerated in totalitarian states (4,5)
I believe the answer is:
free press
'unlikely to be tolerated in totalitarian states' is the definition.
(totalitarian states do not allow a free press)
'idle crowd' is the wordplay.
'idle' becomes 'free' (both can mean not working).
'crowd' becomes 'press' (to press can mean to crowd around).
'free'+'press'='FREE PRESS'
(Other definitions for free press that I've seen before include "a feature of democracy" , "Money-saving offer at the drycleaners" .)