How many letters does the top answer for “(of animals and plants) feeding on insects” have?

The most common answer is insectivorous (13 letters).

Crossword clue: (of animals and plants) feeding on insects

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

insectivorous 13 letters wn-def

(of animals and plants) feeding on insects

(of animals) feeding on plants 75% similar → phytophagous

feeding on both plants and animals 60% similar → omnivorous