| Answer | Crossword Clue |
|---|---|
| DUCT | Air-conditioning system part |
| airs | air-conditioning system |
| air | air-conditioning system |
| PILATES | Conditioning system |
| biodynamic | using only organic materials for fertilising and soil conditioning / a biodynamic system of farming |
| aerobics | a system of physical conditioning involving exercises (as running, walking, swimming, or calisthenics) strenuously performed so as to cause marked temporary increase in respiration and heart rate |
