Related Clues:

• It's used in soap-making
• Potassium hydroxide, e.g.
• Drain cleaner component
• Litmus reddener
• Caustic potash
• Lysergic, for one
• Alkali counterpart
• Users drop it
• NaOH, familiarly
• The 'A' in DNA
• Wood ash product
• Drain opener
• Heartburn cause
• Base antagonist?
• Beyond sarcastic