Related Clues:

• "Go back!" on a computer
• Wipe out head of regiment in comfort
• Remove from a hard drive
• Reverse the effects of
• Clear off a drive?
• Clean off, as a blackboard
• De-file?
• Reverse command
• Edit-menu selection
• Get rid of, as a show you saved from TV
• Job for a teacher's pet
• Drop names, maybe?
• Demagnetize a disk
• Leave no trace of
• Remove from the drive