Agree with token killing? (8)

I believe the answer is:

coincide

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

'agree with' is the definition.
(I've seen this before)

'token killing?' is the wordplay.
'token' becomes 'coin' (I've seen this in another clue).
'killing?' becomes 'cide' (I can't justify this - if you can you should give a lot more credence to this answer).
'coin'+'cide'='COINCIDE'

Can you help me to learn more?

(Other definitions for coincide that I've seen before include "Show correspondence" , "Occur at the same point" , "Occur simultaneously" , "Happen simultaneously" , "Happen together" .)

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.