Unmannerly (4)
I believe the answer is:
rude
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unmannerly</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that unmannerly can be written as rude)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for rude that I've seen before include "Blue" , "Unmannerly" , "discourtesy" , "Uncouth" , "Offensive; unpolished" .)