How many letters does the top answer for “converting something into the form of a novel” have?

The most common answer is novelisation (12 letters).

Crossword clue: converting something into the form of a novel

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

novelisation 12 letters wn-def

converting something into the form of a novel

novelization 12 letters wn-def

converting something into the form of a novel