Possible Clues:

• They manage, when one puts about, to tie up
• Persons employed to manage estates
• They may investigate race matters
• They're enquiry agents, of course
• Racing authorities set off to hospital
• The sort of 25 down that show you the drawback in the sets that are broken
• Officials set out areas for voters
• Officials at events
• Crew members keep lout out of fight on board
• Those keeping an eye on race set off from the hospital