No longer needed (9)
I believe the answer is:
redundant
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">no longer needed</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 redundant that I've seen before include "No longer necessary" , "Surplus to requirements" , "excessive?" , "Superfluous to requirements" , "on the scrap heap?" .)