Burn a little (4)
I believe the answer is:
char
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">burn a little</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for char that I've seen before include "way to make carbon" , "Burn lightly" , "Overcook - fish - daily" , "Singe; a fish" , "Perhaps overheat" .)