Ideas that guy fed to right wing politicians (8)
I believe the answer is:
theories
'ideas' is the definition.
(theory is a kind of idea)
'that guy fed to right wing politicians' is the wordplay.
'that guy' becomes 'he'.
'fed to' indicates putting letters inside.
'right wing politicians' becomes 'tories' (I am not sure about this - if you are sure you should believe this answer much more).
'he' inserted inside 'tories' is 'THEORIES'.
Can you help me to learn more?
(Other definitions for theories that I've seen before include "General principles or opinions" , "Set of principles on which practices are based" , "Hypotheses, possibilities" , "General principles or possibilities" , "Explanatory suppositions" .)