How many letters does the top answer for “composer of fantasy island” have?

The most common answer is hale (4 letters).

Crossword clue: composer of fantasy island

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

hale 4 letters wd-fact-v3

prolific United States writer (1822-1909)

composer of scottish fantasy 50% similar → bruch

composer of the possibility of an island 50% similar → houellebecq

composer of treasure island 50% similar → stevenson