How many letters does the top answer for “author of storm of steel” have?

The most common answer is junger (6 letters).

Crossword clue: author of storm of steel

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

junger 6 letters wd-fact-v3

Swiss psychologist (1875-1961)

author of the storm 67% similar → ostrovsky

author of man of steel 50% similar → crowe

wrote storm of steel 50% similar → junger