Itsy-bitsy biter (4)

I believe the answer is:

flea

(Other definitions for flea that I've seen before include "Bloodsucking parasite" , "Wingless, jumping insect" , "Biting type" , "Leaping insects" , "beastie?" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.