How many letters does the top answer for “a trivial act of lying or being deliberately unclear” have?

The most common answer is fibbing (7 letters).

Crossword clue: a trivial act of lying or being deliberately unclear

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

fibbing 7 letters wn-def

a trivial act of lying or being deliberately unclear

paltering 9 letters wn-def

a trivial act of lying or being deliberately unclear