Authoritarianism (7)
I believe the answer is:
tyranny
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">authoritarianism</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that authoritarianism can be written as tyranny)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tyranny that I've seen before include "Dominance through threat of punishment and violence" , "Oppression" , "Form of despotism" , "Cruel rulers" , "Cruel and oppressive rule" .)