How many letters does the top answer for “wrote subterranean homesick blues” have?

The most common answer is dylan (5 letters).

Crossword clue: wrote subterranean homesick blues

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

dylan 5 letters wd-fact-v3

Celtic god of the waves; son of Arianrhod

author of subterranean homesick blues 60% similar → dylan

composer of subterranean homesick blues 60% similar → dylan

wrote blue 50% similar → mitchell