Deceive, mislead (4)
I believe the answer is:
dupe
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">deceive</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(duping is a kind of deceiving)</span><br/ ><br/ >'<span class="explanation-format__original">mislead</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for dupe that I've seen before include "Gull" , "Hoodwink, fool" , "Cheat" , "Puppet" , "Delude" .)