| Answer | Crossword Clue |
|---|---|
| FUEL | Sustenance for an iron horse |
| horseshoe | A shoe for a horse formed of a narrow band of iron in the form of an extended circular arc and secured to the hoof with nails |
| horseshoes | A shoe for a horse formed of a narrow band of iron in the form of an extended circular arc and secured to the hoof with nails |
| DERAIL | Sabotage an iron horse |
| CHUG | Sound from an iron horse |
| CHOO | Half an iron-horse sound |
| DERAIL | Force an iron horse to go off course |
