Related Clues:

• Worked after time, fuel being sent to eastern Germany
• Done with difficulty
• Worked towards getting back specialist food store
• Hardly natural-sounding
• Worked incessantly
• Struggled with
• Worked hard at
• Worked really hard
• Worked hard to initially install light
• Broke one's back
• Worked like Cinderella
• Perhaps Russian editor worked hard
• Put in work
• Worked in small room, changing the far end
• Far from natural-sounding