Portable computer (6)
I believe the answer is:
laptop
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">portable computer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(laptop is a kind of portable computer)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for laptop that I've seen before include "Aid for businessman" , "PC" , "Portable computer" , "device?" , "Type of computer" .)