Fuel for a camp stove
I believe the answer is:
sterno
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fuel for a camp stove</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sterno that I've seen before include "jelly" , "commercial cooking fuel" .)