Apposite (9)
I believe the answer is:
pertinent
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">apposite</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for pertinent that I've seen before include "Apposite" , "fitting" , "Relevent, material" , "Relevant, to the point" , "Appropriate" .)