Crossword Genius

Possessive that's often confused with a contraction (5)

Ross

I believe the answer is:

whose

(Another definition for whose that I've seen is " Of which person".)

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.