Human whose body has been taken over by machines (6)
I believe the answer is:
cyborg
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">human whose body has been taken over by machines</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 cyborg that I've seen before include "Robot made of biological and machine parts" , "Human whose body has been taken over by machines" , "Sci-fi being with computer implants" , "Person incorporating mechanical elements" , "Human enhanced by mechanical elements" .)