Don Quixote's squire (6,5)
I believe the answer is:
sancho panza
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">don quixote's squire</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sancho panza that I've seen before include "squire to a knight" , "Don Quixote's companion" , "Don Quixote's servant" , "Don Quixote's squire" , "Spanish squire" .)