Related Clues:

• Cappuccino froth
• Beer head
• Cappuccino topper
• Shipping cushion, perhaps
• Top of a draft
• Fire extinguisher's output
• Latte topper
• White water stuff
• "... oceans, white with ___"
• Shaving cream choice
• Possible sign of rabies
• Head in a stein
• Shaving gel alternative
• Mug overflow, perhaps
• Flat beer's lack