Xerox (9)
I believe the answer is:
photostat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">xerox</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that photostat is a kind of the xerox)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for photostat that I've seen before include "Reproduced copy" , "Copying machine" .)