How many letters does the top answer for “in a feminine manner. byron.” have?

The most common answer is femininely (10 letters).

Crossword clue: in a feminine manner. byron.

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

femininely 10 letters web-def

associated with women and not with men

in a dusky manner. byron. 50% similar → duskily

in a fussy manner. byron. 50% similar → fussily

in a ruddy manner. byron. 50% similar → ruddily