Possible Clues:

• Anatomical tube
• Old transport structure high up, not a tube
• Passage ancient poet largely avoided in recitation
• It conveys eggs over bridge, leaving area
• Old half of Victoria line starts to delay users getting Tube
• Egg-laying tube
• Latin poet upset workers about to enter Tube
• Egg's route
• Egg conveyor
• For the eggs, the Latin poet has it cut in bits