Article by twerp to support subversive literature (8)
I believe the answer is:
agitprop
'subversive literature' is the definition.
(I've seen this before)
'article by twerp to support' is the wordplay.
'article' becomes 'a' (the indefinite article in English).
'by twerp' becomes 'git' (I can't explain this - if you can you should give a lot more credence to this answer).
'to support' becomes 'prop' (prop is a kind of support).
'a'+'git'+'prop'='AGITPROP'
Can you help me to learn more?
(Other definitions for agitprop that I've seen before include "Culturally delivered political propaganda -- a top grip (anag)" , "political hype" , "aggressive political publicity" , "subversive material" , "left-wing literature" .)