Related Clues:

• Drop in a slot
• Word with exit or express
• It's not delivered on Sundays
• She has a thing for Superman
• Postal sackful
• Attire for Galahad
• Lovers' ___
• It contains a lot of letters?
• It may lead to a strike?
• Meet assignment
• Post or body armour
• American post
• Post in America
• Rough path
• Post from Lima