How many letters does the top answer for “islam scientist” have?

The most common answer is hanbal (6 letters).

Crossword clue: islam scientist

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

hanbal 6 letters wd-fact-v3

murray 6 letters wd-fact-v3

a southeast Australian river; flows westward and then south into the Indian Ocean at Adelaide

shariati 8 letters wd-fact-v3

history of islam scientist 67% similar → crone, ishaq

shia islam scientist 67% similar → shariati

scientist scientist 50% similar → bacon, yakovlev