Tower above (8)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tower above</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for dominate that I've seen before include "Rule" , "Tower over" , "Admit one in order to be in control" , "Command, control" , "Be lord over" .)