Related Clues:
- Work doggedly or persistently
- Long, boring task
- Hard exertion
- Move through the mud
- Wild cricket hit
- Seemingly endless task
- Obstacle-filled endeavor
- Painful proceeding
- Hard stretch of work
- Work weaving into my upward trek
- Tedious crossword puzzle, say
- March carrying full kit
- Long tedious task
- Very tiring work
- Work away, almost leisurely, to get a lot of money