Possible Clues:

• Circuits pass into disuse without Ecclestone's capital
• 'They get round, of course, with such beastly drinks (4)'
• Toddlers' 26-Down, sometimes
• Circuits of the track
• Swimmer’s count
• Passes on a track
• Drinks from a bowl
• Sitters make them?
• Track or pool units
• Swimming-race units