Possible Clues:

• Stable workforce?
• Stablemen
• There's stable employment for losers around a little tea
• Their charges might sound hoarse
• Grooms
• The grooms that don't need brides
• They used to stable horses at inns
• Let Ross join in group of old stable managers
• Grooms trainee in rearranging stores
• Historically they looked after the horses at an inn