How many letters does the top answer for “a kind of noseband used in breaking and training horses. white.” have?

The most common answer is cavesson (8 letters).

Crossword clue: a kind of noseband used in breaking and training horses. white.

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

cavesson 8 letters web-def

A kind of noseband used in breaking and training horses. [Written also caveson, causson.] White.

cavezon 7 letters web-def

A kind of noseband used in breaking and training horses. [Written also caveson, causson.] White.