
1) Dance equipment
Found on
https://www.crosswordclues.com/clue/sprung-floor

A sprung floor is a floor that absorbs shocks, giving it a softer feel. Such floors are considered the best available for dance and indoor sports and physical education. They enhance performance and greatly reduce injuries. Modern sprung floors are supported by foam backing or rubber feet, while traditional floors provide their spring through bend...
Found on
http://en.wikipedia.org/wiki/Sprung_floor

A specially designed floor that has a quality of resilience. A sprung floor is valuable for dancers as it absorbs some of the strain placed on their bodies during jumps and other movement.
Found on
http://www.artsalive.ca/en/dan/dance101/glossary.asp
No exact match found.