Emulator (8)
I believe the answer is:
imitator
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">emulator</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that emulator can be written as imitator)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for imitator that I've seen before include "parrot" , "Copier (of another)" , "Someone copying the behaviour of another" , "One who mimics or emulates" , "follower" .)