Move in time to music (5)
I believe the answer is:
dance
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">move in time to music</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 dance that I've seen before include "Flamenco, perhaps" , "Social gathering" , "Waltz maybe" , "social function" , "Measure" .)