Legal ambiguity (8)
I believe the answer is:
loophole
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">legal ambiguity</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 loophole that I've seen before include "Means of evasion" , "Opportunity to evade difficulty" , "Flaw in the law?" , "Ambiguity allowing one party to escape contract" , "Ambiguity (in rules) through which one can avoid punishment" .)