Small device (6)
I believe the answer is:
gadget
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small device</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for gadget that I've seen before include "Gizmo, contraption" , "Gismo" , "Ingenious little device" , "Useful small device" , "appliance" .)