Accustomed (to) (6)
(Another definition for enured that I've seen is " toughened up".)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">accustomed to</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 inured that I've seen before include "Accustomed to something difficult" , "Hardened, maybe ruined" , "Hardened, accustomed" , "used to it" , "Hardened against, emotion say" .)