Related Clues:

• Perform or go through with it
• This all hinges on a cross back
• Shut it up or cross it up
• Cross back on the way in
• Ostiary's post
• __ Prize
• Battering ram target
• ID checker's post
• Jamb's place
• It may have an arch or a lintel
• Revolver, maybe
• Elevator entryway
• It's opened and shut
• Perhaps Jim Morrison was way out?
• Tent flap, essentially