Related Clues:

• Works in the mine, say
• Plugs away
• Does drudge work
• Churns
• Slogs away
• Labours
• Slogs
• Works strenuously
• Labours; snares
• Works hard in the nets
• Works hard making net
• Labours on the canvas?
• Works hard on the canvas?
• Works hard making snare
• Finding a vacancy during a cut-back, is a hard worker