Possible Clues:

• Elegant refreshment shop
• Dainty, genteel eatery
• Small restaurant's rent -- low, in retrospect
• Cafeteria
• Quaint restaurant
• Wolves, say, with small herbivore in café
• Rush round to take order in cafe
• Where something's always brewing?
• Where Earl Grey could be too modest at first to grab attention?
• Where crumpet might be on offer, put up low rent first