Crossword Genius

New spouse’s daughters in relation to one’s children (11)

Ross

I believe the answer is:

stepsisters

(Another definition for stepsisters that I've seen is " Relatives by marriage".)

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.