Individual, sole (6)
I believe the answer is:
single
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">individual</span>' is the first definition.<br/ ><br/ >'<span class="explanation-format__original">sole</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ ></span>
(Other definitions for single that I've seen before include "Unique" , "Only one; record" , "Unattached" , "Concentrating on only one aim" , "A hit for one run in cricket" .)