Crossword Genius

Cycling parasite, a high-flyer (5)

Ross

I believe the answer is:

ousel

I'm a little stuck... Click here to teach me more about this clue!

'flyer' is the definition.
(I've seen this before)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for ousel that I've seen before include "dipper" , "Bird similar to blackbird" , "Bird; louse (anag.)" , "Singer" , "Former name for blackbird" .)

I've seen this clue in The Guardian.
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.