Great victory (7)
I believe the answer is:
triumph
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">great victory</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 triumph that I've seen before include "Prove superior" , "Outstanding victory" , "Conquer, prevail" , "motorbike" , "beat the opposition!" .)