How many letters does the top answer for “a bit of fiber that has become separated from woven fabric” have?

The most common answer is raveling (8 letters).

Crossword clue: a bit of fiber that has become separated from woven fabric

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

raveling 8 letters wn-def

a bit of fiber that has become separated from woven fabric

ravelling 9 letters wn-def

a bit of fiber that has become separated from woven fabric