At a brisk tempo (7)
I believe the answer is:
allegro
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">at a brisk tempo</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 allegro that I've seen before include "In a brisk and lively manner" , "Moving fast" , "Instruction to perform in lively fashion" , "Scored at a brisk speed" , "Brisk movement or passage" .)