Ideology (10)
'ideology' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for belief that I've seen before include "Faith; confidence" , "Tenet, creed" , "Principle accepted without proof" , "Faith, doctrine" , "Faith, credence" .)
'ideology' is the definition.
(capitalism, communism etc)
This is all the clue.
(Other definitions for ism that I've seen before include "Political ideology" , "Any ideological doctrine" , "Doctrine, philosophy" , "specific doctrine" , "Belief system" .)
'ideology' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for philosophy that I've seen before include "Set of principles derived from deep thought?" , "First P of PPE" , "School of thought" , "Study of being, meaning etc" , "that left something lacking for Horatio?" .)