Polite, respectable (6)
I believe the answer is:
decent
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">polite</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >'<span class="explanation-format__original">respectable</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ ></span>
(Other definitions for decent that I've seen before include "Presentable" , "Obliging or modest" , "Moral; fitting" , "Sufficient" , "Sufficiently clothed" .)