Title just about sets up the female members (7)

I believe the answer is:

sisters

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

'members' is the definition.
(I know this)

I cannot understand how the rest of the clue works.

(Other definitions for sisters that I've seen before include "Female siblings" , "Nuns' titles" , "Relatives in hospital?" , "Members of the family" , "Resists for relatives" .)

I've seen this clue in the Sydney Morning Herald.

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.