Dicky (3)
I believe the answer is:
ill
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dicky</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ill that I've seen before include "Sickly" , "Valetudinarian" , "poor" , "In a bad way" , "Seasick" .)