Related Clues:

• Worked arduously
• 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
• This worked when Edward was around with the lubricant.
• With the aid of lubricant after tea, this worked
• Edward worked around what's like 31 across, by the sound of it