How many letters does the top answer for “fish with long tubular snout and slim body covered with bony plates” have?

The most common answer is needlefish (10 letters).

Crossword clue: fish with long tubular snout and slim body covered with bony plates

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

needlefish 10 letters wn-def

fish with long tubular snout and slim body covered with bony plates

pipefish 8 letters wn-def

fish with long tubular snout and slim body covered with bony plates