Incorrectly (7)
I believe the answer is:
wrongly
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">incorrectly</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for wrongly that I've seen before include "Falsely" , "In an improper way" , "In error" , "by mistake" , "Mistakenly" .)