Authoritarian (10)
I believe the answer is:
autocratic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">authoritarian</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for autocratic that I've seen before include "Having absolute power" , "bossy" , "Totalitarian" , "Unrestrainedly powerful" .)