Collateral (8)
I believe the answer is:
security
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">collateral</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for security that I've seen before include "Freedom from anxiety or fear" , "Pledge; safety" , "precaution" , "peace of mind" , "Safety measures" .)