Quite old (7)
I believe the answer is:
elderly
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">quite old</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for elderly that I've seen before include "Long in the tooth" , "Getting on in years" , "Getting on a bit" , "... or not of tender years" , "Mature" .)