Political revolt (6)
I believe the answer is:
putsch
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">political revolt</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 putsch that I've seen before include "Revolutionary uprising" , "Sudden illegal acquisition of power" , "Coup dtat" , "political revolt" , "Violent attempt to seize power" .)