Suitable, appropriate (8)
I believe the answer is:
apposite
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">suitable</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(apposite means suitable or appropriate)</span><br/ ><br/ >'<span class="explanation-format__original">appropriate</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for apposite that I've seen before include "Suitable, relevant" , "fitting" , "Appropriate for purpose or occasion" , "Meet" , "Of a remark, appropriate for the occasion (8)" .)