Step down (6)
I believe the answer is:
resign
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">step down</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that step down can be written as resign)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for resign that I've seen before include "Abdicate" , "advice for the incompetent?" , "Stand down" , "surrender" , "Quit" .)