Winning (2,1,4)
There are a few possibilities for this:
on a roll
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">winning</span>' is the definition.<br/ ><span class="explanation-format__explanation">(both can mean in the lead)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ahead that I've seen before include "In the lead, in advance" , "at pole" , "in van" , "In the leading position" , "In the vanguard" .)
(Another definition for ontop that I've seen is " Leading".)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">winning</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for on a roll that I've seen before include "name could be found here?" , "Hitting a purple patch (as bacon might be?)" , "Having a run of good luck (colloq.)" , "Where ham may be" , "Enjoying good luck" .)