Acid test indicator (6)
Crossword clue · 1 known answers · 1 appearances · Last seen in the The Guardian crossword on August 13, 2026
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LITMUS
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About this clue
The clue “Acid test indicator (6)” has appeared 1 times in our database with 1 different answers, so count the squares in your grid and check the crossings before you commit. Most recently it ran in the The Guardian crossword on August 13, 2026, where the answer was LITMUS.
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