Crossword Genius

In section of Okinawa, sheriff is swamped (5)

Ross

I believe the answer is:

awash

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'in' is the definition.
Both the answer and definition are adjectives. Maybe there's an association between them I don't understand?

'section of okinawa sheriff is swamped' is the wordplay.
'section of' indicates the answer is hidden within the clue.
'AWASH' is hidden in the letters of 'okinawa sheriff swamped'.

Can you help me to learn more?

(Other definitions for awash that I've seen before include "Doused in water" , "Letting the 21 in" , "Flooded with water" , "Covered by water - sounds cleansing" , "Flood" .)

I've seen this clue in The Irish Times.
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