Related Clues:
- Groove made by wheel
- Fixed (and tedious?) course
- Furrow caused by wheels
- Take a brief light sleep
- Custer leaves structure in ditch
- Groove in a road
- Biker's hazard
- Nine-to-five drudgery, say
- Groovy track?
- Symbol of tiredness
- Routine that's hard to escape
- Pity endless sex at a stag party?
- Boring groove to be stuck in!
- Humdrum pattern
- Tough thing to be stuck in