Crossword Genius

Having served as a cleaner, finished (4,3)

Ross

I believe the answer is:

done for

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

'finished' is the definition.
(synonyms)

'having served as a cleaner' is the wordplay.
I cannot quite understand how this works, but
'a' could be 'one' and 'one' is located in the answer.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for done for that I've seen before include "in serious trouble" , "finished" , "Ruined" , "condemned" , "killed" .)

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.