Dominant (2,3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dominant</span>' is the definition.<br/ ><span class="explanation-format__explanation">(on top can mean dominant or in the ascendancy)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for on top that I've seen before include "Winning" , "In a dominant position" , "At the summit or in superior position" , "Leading" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dominant</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for alpha that I've seen before include "Greek vowel" , "starter" , "high mark" , "Brilliant star" , "First, best quality" .)