Circulation editor becoming late (7)

I believe the answer is:

eddying

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

'circulation editor becoming late' is the definition.
I can't judge whether this definition defines the answer.

'editor becoming late' is the wordplay.
'editor' becomes 'ed' (abbreviation).
'becoming late' becomes 'dying' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'ed'+'dying'='EDDYING'

Can you help me to learn more?

(Other definitions for eddying that I've seen before include "in vortex" , "Swirling around" , "Swirling round" .)

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.