Obvious, plain (8)
I believe the answer is:
manifest
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">obvious</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">plain</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for manifest that I've seen before include "(Of ghost) appear" , "Customs document listing contents of ship or plane" , "Document listing a ship's contents for customs purposes" , "Reveal" , "list of passengers for customs" .)