A fool has support for potentially fake news (8)
I believe the answer is:
agitprop
'fake news' is the definition.
(agitprop means political propaganda)
'a fool has support for potentially' is the wordplay.
I cannot quite see how this works, but
'a' is present in the answer.
'fool' could be 'git' (I've seen this in other clues) and 'git' is located in the answer.
'support' could be 'prop' (prop up can mean to support) and 'prop' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for agitprop that I've seen before include "left-wing literature" , "The spreading of political propaganda" , "'Political agitation and propaganda, in short (8)'" , "revolutionary comment" , "Left messages" .)