Coup (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">coup</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for putsch that I've seen before include "A sudden political uprising" , "Coup dtat" , "Sudden illegal acquisition of power" , "Violent attempt to seize power" , "Violent attempt to overthrow a government" .)