Take into custody (6)
I believe the answer is:
arrest
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">take into custody</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 arrest that I've seen before include "Take into legal custody" , "Apprehend; detain" , "Stop - take into custody" , "Stop or slow down the progress of" , "Catch" .)