Stimulates (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">stimulates</span>' is the definition.<br/ ><span class="explanation-format__explanation">(fueling is a kind of stimulating)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for fuels that I've seen before include "Substances consumed to produce energy" , "Substances that provide heat or power" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">stimulates</span>' is the definition.<br/ ><span class="explanation-format__explanation">('excite' can be a synonym of 'stimulate')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for excites that I've seen before include "Arouses feelings in" , "Stirs up, stimulates" , "Animates" , "Stirs up, rouses" , "Makes eager" .)