How many letters does the top answer for “large powerful tractor; a large blade in front flattens areas of ground” have?

The most common answer is bulldozer (9 letters).

Crossword clue: large powerful tractor; a large blade in front flattens areas of ground

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

bulldozer 9 letters wn-def

large powerful tractor; a large blade in front flattens areas of ground

dozer 5 letters wn-def

large powerful tractor; a large blade in front flattens areas of ground