Possible Clues:

• Disguise
• Conceal source of flour in mixing guacamole
• Copper consuming a second fine drink largely in disguise
• Disguise by use of colour, patterns etc
• Concealment method
• Means of disguise
• Old university banner arrived without disguise
• Green and brown on a green and brown background, say?
• Draw a veil over where French fleur-de-lis came about
• Journeyed to house where French droop blind