Enduringly popular (9)
I believe the answer is:
evergreen
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">enduringly popular</span>' is the definition.<br/ ><span class="explanation-format__explanation">(evergreen can mean popular or dependable)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for evergreen that I've seen before include "Holly, say" , "Ivy, perhaps" , "always retaining popularity" , "Of lasting popularity" , "Source of wood" .)