Crossword Genius

When intoxicated Jean is utterly into cleanliness (7)

Ross

I believe the answer is:

hygiene

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

'cleanliness' is the definition.
(I've seen this in another clue)

'when intoxicated jean is utterly into' is the wordplay.
I cannot really see how this works, but
'when' could be 'e' (I've seen this in other clues) and 'e' is found within the answer.
'into' could be 'in' and 'in' is found within the remaining letters.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for hygiene that I've seen before include "Sanitary science" , "Practice of cleanliness to maintain health" , "The practice or conditions of cleanliness" , "Clean practice" , "Clean and healthy practices" .)

I've seen this clue in the Sydney Morning Herald.
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