Slingshot (8)
I believe the answer is:
catapult
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">slingshot</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for catapult that I've seen before include "Launch" , "Aircraft carrier launcher" , "Y-shaped stick with elastic between the arms" , "Simple elastic device for shooting projectiles" , "Device for firing stones or rocks" .)