Possible Clues:

• Monarch leaves another one heading for antique shops
• Shops one in interim without judge around
• Vendors rejected broadcast work by this writer
• Sets up broadcast operation with guys, for most part, from Trading Places
• Monument with scrubbed exterior borders parking for shops
• Flipping great Hitchcock film about top spy in shops
• Shops occasionally team up to train staff at the centre
• Shops all opening, eight million people outside running in, apparently
• Large shops commoner in heart of age-old coastal inlet
• Shops show work by the setter retrospectively