In the lead (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">in the lead</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ahead that I've seen before include "advanced" , "In front as in race" , "In the leading position" , "In the future" , "Forward - in front" .)