Glowing piece in a dying fire (5)
I believe the answer is:
ember
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">glowing piece in a dying 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 ember that I've seen before include "Glowing coal; type of goose" , "Glowing, smouldering piece of coal or wood" , "Just a glimmer" , "It glows in dying fire" , "what causes a warm glow" .)