Bring to a standstill (4)
I believe the answer is:
stop
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bring to a standstill</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for stop that I've seen before include "Knock out" , "cut out" , "Cease, desist, whoa" , "Quit" , "Arrest" .)