Dance bit (4)
I believe the answer is:
step
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dance bit</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for step that I've seen before include "Foot movement" , "Gradation" , "Stride" , "Second half of quick 20?" , "one stage of flight" .)