Related Clues:

• Protest loudly
• Gush, as a volcano
• Protection on a porch
• Balcony encloser
• Where the crappy alcohol comes from, at the bar
• Go off on
• Eject, as 16-Across
• Eject, geyser-style
• Expel, as lava
• Belch
• Train track piece
• Stairwell feature
• Skateboard trickster's track
• Train guide
• Choice for a commuter