First premier of the Soviet Union (5)
I believe the answer is:
lenin
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">first premier of the soviet union</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 lenin that I've seen before include "Soviet Union's first premier" , "Leader of the Russian Revolution" , "Early Soviet leader" , "Linen for Communist" , "Marxist theoretician" .)