Possible Clues:

• Coy about drink with Lieutenant, cunning
• Copy what used to be your secret
• Making a contribution secretively to the salty stew
• Furtive and bashful about tea with the lieutenant
• Clandestine
• Rob your past like a cat-burglar
• Furtive — take your word for it?
• Secret way to get fit, avoiding hospital at first
• The ____ School of Criticism was Dante Gabriel Rosetti’s response to Robert Buchanan’s attack on the Pre-Raphaelites in The Fleshly School of Poetry
• Unobtrusive stone well defaced