Self-assembly set (3)
I believe the answer is:
kit
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">self-assembly set</span>' is the definition.<br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for kit that I've seen before include "Supplies" , "Young beaver" , "Young stoat" , "Set - uniform - gear" , "Set of parts sold to be assembled" .)