Related Clues:

• Street opening
• Sub entry
• Sit on eggs
• Come out of one's shell
• Concoct, as a plan
• Street opening for a utility worker
• ''Down the ___!'' (drinker's toast)
• Common gay bar name
• Sewer access
• Sewer entrance
• Submarine egress
• "Down the ___!" (drinker's toast)
• Floor door
• Entry point for a sewer worker
• Contrive, as a scheme