Down-at-heel (6)
I believe the answer is:
shabby
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">down-at-heel</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 shabby that I've seen before include "Run down" , "Worn and run-down, like clothes" , "Dingy - dirty" , "Worn and dirty; mean" , "Dowdy" .)