An annelid belonging to the subclass Hirudinea (5)

I believe the answer is:

leech

(Other definitions for leech that I've seen before include "Old physician" , "Old medical attendant" , "Bloodsucking annelid" , "Blood-sucking creature" , "Old doctor" .)

I've seen this clue in The Independent.

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.