Having everything one needs
I believe the answer is:
set
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">having everything one needs</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for set that I've seen before include "conventional" , "Sink below the horizon" , "Mount (gem); scenery" , "declined" , "Arrange; a party" .)