Possible Clues:

• ''Gladiator,'' e.g.
• Work of art set in the past
• It conjures up times past
• Firearm found after lesson is an antique
• Novel that evokes earlier times
• I proceed farcically, swallowing pie in costume drama, perhaps
• Item reminiscent of a past time
• Item reminiscent of former times
• Essay for grammar class?
• Knight, say, under spell in old play