Related Clues:

• Alkali washing solution
• Nitrogen-hydrogen gas
• Pungent cleaner
• Solution obtained by leaching
• In an uprising, I ducked under bullets and gas
• Cleansing alkaline fluid
• Washing solution
• Cleaner bullets need introducing apace at the front
• Old man with aim to disperse gas
• Solution that sounds a false one
• Solution is extremely elegant, in part
• Caustic material
• Potassium hydroxide, e.g
• Solution for some housework
• Solid caustic