Glowing with heat (12)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">glowing with heat</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 incandescent that I've seen before include "White-hot" , "Brilliant" , "Hotly glowing bright" , "Dazzling" , "Glowing brightly" .)
(Another definition for redhot that I've seen is " Poker tip may be".)