Related Clues:

• Lazy Susan, e.g.
• Life partner?
• Support, to a civil engineer
• Waiter's need
• Buffet eater's aid
• X, in math
• London institution, with 'The'
• Balance part
• Busboy's burden
• Waiter's aid
• What X may mean
• Lazy Susan, essentially
• Waiting aid
• Waiter's burden
• See 17 Across