Valuable hoard (8)
I believe the answer is:
treasure
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">valuable hoard</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 treasure that I've seen before include "Stored-up wealth" , "Hold dearly, like buried gold etc" , "Accumulated wealth, might be buried" , "Jewel hoard" , "Valued possession, buried perhaps" .)