Hard-wearing (7)
I believe the answer is:
durable
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hard-wearing</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 durable that I've seen before include "existing for a long time" , "Tough and long-wearing" , "Capable of lasting" , "Lasting a long time" , "Rugged; long-lasting" .)