Make used to (8)
I believe the answer is:
accustom
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">make used 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 accustom that I've seen before include "Make familiar with" , "Inure" , "get used to" , "Maybe reconcile" , "Make (someone) used to (something)" .)