No longer in use (8)
I believe the answer is:
obsolete
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">no longer in use</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for obsolete that I've seen before include "Gone out of use and no longer effective" , "Outmoded, passe" , "Pass" , "No longer produced or used" , "Out-of-date" .)