Borodin's "Prince ___" (4)
I believe the answer is:
igor
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">borodin's prince</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 igor that I've seen before include "Stravinsky's first name" , "Stravinsky, for example" , "Prince --, opera by Borodin" , "Card game" , "Hero of Borodin" .)