Related Clues:

• Ballroom pro
• "Soul Train" performer
• Nijinsky, e.g.
• Dasher's yokemate
• Hoofer
• One inspired by Terpsichore
• One who might wear slippers
• Mover to music
• One can get into the red if one is in the ballet
• Not the sort of ball-player for the 23 across
• One can get red round for the 24 across (6)
• Not on the ball but at it
• That's one you may get at the end of 29 across
• May not be on the ball but is in it
• Hundreds may crane to get to do their thing with the ball