How many letters does the top answer for “do away with, cause the destruction or undoing of” have?

The most common answer is destroy (7 letters).

Crossword clue: do away with, cause the destruction or undoing of

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

destroy 7 letters wn-def

do away with, cause the destruction or undoing of

destruct 8 letters wn-def

do away with, cause the destruction or undoing of