Possible Clues:

• Store originally in Herald Square
• New York merchant Horace
• Fashionable store since 1902
• Eponymous retailer Andrew
• __ OFF 5TH: discount store
• It has a separate men's store opposite its main store in Chicago
• Neiman Marcus alternative
• Bloomie's or Barneys rival
• Fifth Avenue icon
• Department store with a New York City flagship