Related Clues:

• Threshold
• Rock layer
• Start with step or stop
• Entry
• Stock holder?
• Mantelpiece
• 'Let's Make a Deal' option
• 'In' place
• Inventory's place
• It can get you in on the ground floor
• It may be a trap
• Place for knickknacks
• Way in or out
• Kind of prize
• Opportunity, metaphorically