Baseball's Jeter (5)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">baseball's jeter</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for derek that I've seen before include "Man's name" , "Sir - - Jacobi (actor)" , "Fellow" , "- and the Dominos was Eric Clapton's band" .)