Forbidden by law (7)
I believe the answer is:
illicit
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">forbidden by law</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for illicit that I've seen before include "Contrary to or forbidden by law" , "not conforming to regulations" , "Contraband" , "Bootleg; clandestine" , "breaking the law" .)