How many letters does the top answer for “someone who leads you to believe something that is not true” have?

The most common answer is cheater (7 letters).

Crossword clue: someone who leads you to believe something that is not true

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

cheater 7 letters wn-def

someone who leads you to believe something that is not true

deceiver 8 letters wn-def

someone who leads you to believe something that is not true