Related Clues:

• The Empire State Building's 1,860
• Flight units
• They may be taken in an emergency
• This puzzle has a secret one, starting with the third letter of 4-Down
• Case starter
• Flight components
• Way up?
• Ramp alternative
• Fire escape, e.g.
• It could be a step up
• Stalled escalator?
• Railing sites
• Energetic folks take them
• A step up
• Word with well or case