Related Clues:

• Subject of many unhappy returns
• Make good use of maestro when piano's unavailable
• Use final bits of underwater equipment beneath river
• Give one's all with
• Apply, as energy
• Subject of Box 2 on a Form W-2
• Use, as force
• Exercise influence to remove bolt from letter box
• Repair bill component
• Line on a receipt
• Apply, as effort
• IRS money
• Use, as great effort
• Put forth vigorously
• Sap or stress