Ill; nauseous (4)
I believe the answer is:
sick
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">ill</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that ill can be written as sick)</span><br/ ><br/ >'<span class="explanation-format__original">nauseous</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that nauseous can be written as sick)</span><br/ ><br/ ></span>
(Other definitions for sick that I've seen before include "Bad" , "not good" , "Poorly" , "Ill; nauseous" , "Ill; perverted" .)