Russian despot
I believe the answer is:
tsar
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">russian despot</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tsar that I've seen before include "Word derived from Caesar, used by European rulers since 1547" , "Potentate" , "Person in charge" , "Russian monarch" , "Russian leader" .)