Antiquated, passé (5)
I believe the answer is:
dated
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">antiquated</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">passe</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for dated that I've seen before include "Went out with - old hat" , "Out of fashion" , "Met socially by arrangement" , "No longer fashionable or current" , "Revealed the age of" .)