His opposition comes from Mrs Witherspoon (4)

I believe the answer is:

hers

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

'his opposition' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'from mrs witherspoon' is the wordplay.
'from' says the answer is hidden in the clue.
'HERS' can be found hidden inside 'mrs witherspoon'.

'comes' acts as a link.

Can you help me to learn more?

(Other definitions for hers that I've seen before include "Belonging to the female" , "The woman's" .)

I've seen this clue in the Evening Standard.

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.