How many letters does the top answer for “one who flees from one side to another; hence, a deserter; a turncoat; an apostate.” have?

The most common answer is transfuge (9 letters).

Crossword clue: one who flees from one side to another; hence, a deserter; a turncoat; an apostate.

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

transfuge 9 letters web-def

One who flees from one side to another; hence, a deserter; a turncoat; an apostate. [R.]

transfugitive 13 letters web-def

One who flees from one side to another; hence, a deserter; a turncoat; an apostate. [R.]