How many letters does the top answer for “the state of being a father; the character or authority of a father; paternity.” have?

The most common answer is fatherhood (10 letters).

Crossword clue: the state of being a father; the character or authority of a father; paternity.

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

fatherhood 10 letters web-def

the status of a father