Related Clues:

• Part of the tab
• Help line?
• ____ for service
• Part of a pointer
• It's left on the table
• ATM user's annoyance
• Subject of an anonymous call, maybe
• Payroll deduction
• Service bonus
• Income outgo
• Bit of help
• Part of an iceberg that's visible
• Helpful suggestion
• Price of an office visit
• Wait for it