Favourite city medic's future wool supplier (3,4)

I believe the answer is:

pet lamb

'future wool supplier' is the definition.

'favourite city medic's' is the wordplay.
'favourite' becomes 'pet' ('pet' can be a synonym of 'favourite').
'city' becomes 'la' (Los Angeles).
'medic' becomes 'mb' (Bachelor of Medicine).
'pet'+'la'+'mb'='PET LAMB'

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.