Form of Marxism (8)
I believe the answer is:
leninism
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">form of marxism</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for leninism that I've seen before include "Communist doctrine" , "Later form of Marxism" .)