Related Clues:

• Goes at a snail's pace
• Arduous journeys
• Almost spills
• Breaks one's back, say
• Grinds
• Works like a dog
• Doesn't do the job easily
• Difficult expeditions
• Odysseys
• Walks through water
• Works a double shift, e.g.
• Difficult journeys
• Works very hard
• Handles clumsily, as a pail
• Walks with effort