Despairing (8)
I believe the answer is:
hopeless
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">despairing</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for hopeless that I've seen before include "Feeling or causing despair" , "incurable" , "Having no reason expect a good outcome" , "Incompetent" , "Inefficient" .)