Eg, The Nutcracker (6)
I believe the answer is:
ballet
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">eg the nutcracker</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that The Nutcracker is a ballet)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ballet that I've seen before include "Let lab open up for dance" , "Eg, Swan Lake" , "Type of dance" , "kind of skirt" , "eg Giselle" .)