Indy champ Andretti (5)
I believe the answer is:
mario
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">indy champ andretti</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 mario that I've seen before include "Lanza" , "-- Puzo, author of The Godfather" .)