How many letters does the top answer for “a business engaged in the manufacture of automobiles” have?

The most common answer is automaker (9 letters).

Crossword clue: a business engaged in the manufacture of automobiles

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

automaker 9 letters wn-def

a business engaged in the manufacture of automobiles

carmaker 8 letters wn-def

a business engaged in the manufacture of automobiles