Boxer Muhammad (3)
I believe the answer is:
ali
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">boxer muhammad</span>' is the definition.<br/ ><span class="explanation-format__explanation">(Muhammad Ali)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ali that I've seen before include "Muhammad's son-in-law" , "Ringmaster" , "A champ'" , "Fourth caliph of Islam" , "Muhammad --, US boxer" .)