It would seem this forum has either died or contains all the knowledge in the universe so there is nothing more to add.
I know what Clean means. Grew up in a boarding school. Inspections every day. Weekly super inspections. Personal inspection after showers etc. Clean. My mother’s middle name was “Clean”. My 2nd wife and SD and DIL are/were nurses - Clean. Friends that are/were nurses - Clean. Dating women between marriages - Clean.
I have, however, discovered there are variations described below in descending order:
Clean for Company: A state obtained with much labor usually over a short intense period and sustainable for a short intense period.
Everyday Clean: A happy state of existence requiring minimal effort and sustainable for extended periods of days to even weeks with luck.
Caregiver Clean: An non happy non satisfactory state characterized by, “To hell with it, that’s the best I can do right now.”