Related Clues:

• Take a toll on
• Purchase add-on
• Total (up)
• 1 + 2 + 3, e.g.
• Word on two Monopoly squares
• Part of an iceberg
• Detective's lead
• Iceberg part
• Earner's burden
• 15%-20%, usually
• Kind of shelter
• Part of the tab
• Help line?
• Part of a pointer
• It's left on the table