Related Clues:

• Worked up a sweat
• Worked way too hard
• Worked arduously
• Put one's back into it
• Worked long and hard
• Laboured, worked hard
• Worked laboriously and long
• Worked hard, laboured
• Laboued long and hard
• Worked hard and long
• Worked or laboured very hard
• Laboured
• This worked to one who was the leader
• Having been lubricated with a little tea, it worked!
• Having been lubricated at last, it worked