Related Clues:

• Walks heavily
• Wades (through)
• Paper producers
• Wearisome competitions
• Exhausting routines
• Walks laboriously
• Works up a sweat
• Routines bad to be on
• Toils
• Stressful existences
• Difficult jobs
• Arduous journeys
• Rumor producers?
• Breaks one's back, say
• Works like a dog