Stun gun (5)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">stun gun</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 taser that I've seen before include "A shocking thing" , "Shocking device used by the police?" , "police weapon introduced" , "Shocking weapon" , "Gun firing electrified barbs" .)