Related Clues:

• Member's obligation, often
• Giant's first word
• Cost for services
• Consultant's charge
• Airfare add-ons
• Phone-bill add-ons
• Finder's charge
• They're always charged
• Membership costs
• ATM charge
• Cost of entry
• First of four giant syllables?
• Sum payable to, say, barrister
• Money paid for professional services
• Payment to a professional for services