Possible Clues:

• Masters exam's cracked by one with spirit
• Documents brought to copy shops
• A girl’s in love, madly, with new creations
• Unique people
• They're not facsimiles
• Art museum works, usually
• Things often left at copy shops
• Sailor playing rummy concealed cards
• The sort of oils found in working grain silo?
• 'My aunt and her paramour . . . such a pair of --, as I believe, all England could not parallel' (Smollett, Humphrey Clinker)