Historical clue formulations

• Post-snowfall vehicles — 2025-08-18
• Clears of snow, say — 2025-06-01
• Cultivates, in a way — 2025-01-21
• Does some field work — 2024-03-03
• Street clearers — 2023-06-25
• Goes (through) laboriously — 2020-02-20
• Snow clearers — 2017-09-18
• Does fieldwork? — 2015-06-26
• Winter highway department needs — 2010-09-28
• Prepares ground for planting — 2000-06-19
• Tractor blades — 1999-03-18
• Breaks up, in a way — 1998-08-05
• Fieldworkers' items — 1998-03-20
• Snow-cleaning vehicles — 1996-12-09
• Deere products — 1995-07-18