Ill-mannered one (4)
I believe the answer is:
lout
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ill-mannered one</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 lout that I've seen before include "Awkward and stupid person" , "disrespectful person" , "Ill-mannered person" , "A coarse ignorant fellow" , "Ill-mannered or aggressive man" .)