Possible Clues:

• Scallop-edged cracker
• Hotel name synonymous with poshness
• Classic Nabisco cracker
• Posh London hotel
• Hotel on London's Piccadilly
• Epitome of luxury, with 'the'
• Regulars inside crazy about one-time posh venue
• Picked up legal documents for posh hotel
• It's very expensive to get legal papers heard
• Cracker in many recipes