Related Clues:
- Nine-to-five drudgery
- Dirt road sight
- Tire snagger
- Deep tire track
- Boring thing to be stuck in
- How hack produced copy - reportedly by uninspired repetition
- Dreary routine produces depression
- Furrow - dreary routine
- Learn by ____ (repetition)
- Deep tyre track
- Furrow left by wheel
- Humdrum routine
- Groove worn by wheels
- Groove made by wheel
- Fixed (and tedious?) course