Hound half of graduates lapped by runner (6)

I believe the answer is:

saluki

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

'hound' is the definition.
(Saluki is a breed of dog)

I can't explain the rest of the clue.

(Other definitions for saluki that I've seen before include "Shown [AT CRUFTS]" , "Gazelle-hound" , "Tall breed of hound" , "Tall slender dog" , "it's silky and has bark" .)

I've seen this clue in The 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.