Related Clues:
- One makes a dive for what has a breath of inside
- Not in truth, by the sound of it, so caustic
- After half a century one might leach with this from the Ashes (3)
- It's caustic
- After half a century you get quite caustic
- Highly caustic stuff
- Drain-clearing chemical
- Drain-cleaner chemical
- Burning stuff
- Drain-cleaner ingredient
- Cleaning substance
- Hominy-making solution
- Common name for sodium hydroxide
- Device for unblocking drains
- Device for clearing blocked drains