How many letters does the top answer for “wrote red house” have?

The most common answer is morris (6 letters).

Crossword clue: wrote red house

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

morris 6 letters wd-fact-v3

United States statesman who led the committee that produced the final draft of the United States Constitution (1752-1816

author of red house 50% similar → morris

wrote a doll's house 50% similar → ibsen

wrote black house 50% similar → king

wrote bleak house 50% similar → dickens

wrote deep red 50% similar → argento

wrote from the house of the dead 50% similar → janacek

wrote house of representatives 50% similar → koolhaas

wrote monster house 50% similar → ohara