Cinders (6)
(Other definitions for embers that I've seen before include "Glowing residue of fire" , "Glowing coals" , "Vestiges of fire" , "Dying coals in fire" , "Remains of coal fire" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cinders</span>' is the definition.<br/ ><span class="explanation-format__explanation">(cinders can mean ashes)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ash that I've seen before include "One [TYPE OF TREE]" , "Residue after burning" , "Wooden" , "Tree with winged seeds" , "Tree; fire residue" .)