Unable to do things for oneself (8)
I believe the answer is:
helpless
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unable to do things for oneself</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 helpless that I've seen before include "Unable to do things for oneself" , "Impotent" , "Unaided" , "Powerless or incapacitated" , "Unable to defend oneself" .)