Rich, luxurious (7)
I believe the answer is:
opulent
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">rich</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">luxurious</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for opulent that I've seen before include "extremely elegant" , "No let-up (anag)" , "Wealthy, luxurious" , "'Rich, sumptuous (7)'" , "'Deluxe, luxurious (7)'" .)