Related Clues:

• The Iron Horse road
• The permanent way
• Might the bird complain so bitterly over the sleepers?
• A knight in mail was not in this
• That's the bird that gets under the train
• To get the train back is enough to make one tell 2 down
• How one might complain bitterly at having to train over this, perhaps
• You can't believe the one that gets up here to travel by it
• Train on this and inveigh against it
• The line of a bird
• Stick this on top of 20 down
• You can't believe what it's like coming back by train
• At last it gets blown
• Train the bird to go over this
• There are letters after it