Possible Clues:

• Not yet 58-Down
• Serve entrees, for example
• Twiddle one's thumbs
• Work at a diner, e.g.
• ''Be patient!''
• "Hold on a second"
• White Lion hit for the patient?
• 'Hang tight'
• 'Comedian' encompasses a fashionable occupation — join the queue
• Typically stand in line with key