Court security (4)
I believe the answer is:
bail
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">court security</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 bail that I've seen before include "Part of a wicket - legal payment" , "Sum of money guaranteeing the accused's return to court" , "Item resting on stumps" , "Temporary release of the accused - wicket crosspiece" , "Wooden bar" .)