How many letters does the top answer for “a diseased condition produced by eating rye affected with the ergot fungus.” have?

The most common answer is ergotism (8 letters).

Crossword clue: a diseased condition produced by eating rye affected with the ergot fungus.

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

ergotism 8 letters web-def

poisoning by ingestion of ergot-infected grain products; characterized by thirst and diarrhea and nausea and cramping an