Cause of bad reactions

The answer to “Cause of bad reactions” in the The Telegraph Quick crossword is ALLERGY — a 7-letter word. It most recently appeared in the The Telegraph Quick crossword on September 23, 2026, a Wednesday puzzle, at 10-Across. Below you'll find why that fill fits, every other answer we've recorded for this clue, and links into the puzzle it came from.

“Cause of bad reactions” answer

ALLERGY (7 letters)

Reveal the solution one letter at a time with the tiles above if you'd rather nudge yourself toward it than see the whole word at once. Just want it outright? The answer is ALLERGY.

What does ALLERGY mean?

Reading the plain dictionary sense of ALLERGY is often the fastest way to see why it answers this clue.

When else has “Cause of bad reactions” appeared?

The Telegraph Quick reuses clues across dates, sometimes with a different answer depending on the grid. Here's where this exact clue has shown up, and what the answer was each time — handy when you're checking whether today's fill is the only one.

September 23, 2026 (most recent) → ALLERGY. We haven't indexed another appearance of this exact clue yet.

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