How many letters does the top answer for “a sharp steel wedge that cuts loose the top layer of soil” have?

The most common answer is ploughshare (11 letters).

Crossword clue: a sharp steel wedge that cuts loose the top layer of soil

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

ploughshare 11 letters wn-def

a sharp steel wedge that cuts loose the top layer of soil

plowshare 9 letters wn-def

a sharp steel wedge that cuts loose the top layer of soil