Remains of a fire (5)
(Other definitions for ashes that I've seen before include "Remains from a cremation" , "sporting trophy" , "Remains of anything burnt" , "Eng./Aus. cricket trophy" , "Former Wimbledon champion's" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">remains of a fire</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 ash that I've seen before include "Tree; burnt residue" , "Hard pale wood" , "Burnt remains; tree" , "Volcanic dust" , "Timber tree" .)