Adjoining (8)
I believe the answer is:
adjacent
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">adjoining</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for adjacent that I've seen before include "Lying near, bordering" , "next door" , "Next (to something)" , "Lying near or next (to)" , "Close by" .)