Family treasure (8)
I believe the answer is:
heirloom
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">family treasure</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for heirloom that I've seen before include "Valuable family object" , "Valuable item still in family" , "Cherished item passed down through generations" , "something passed on" , "Hand-me-down" .)