Apt anagram of "vile" (4)
I believe the answer is:
evil
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">apt anagram of vile</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for evil that I've seen before include "Malignant" , "Very wicked or bad" , "Excellent" , "Morally objectionable behavior" , "Live kind of badness" .)