Force potassium into everything and initially saturate some islands (9)

I believe the answer is:

falklands

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'some islands' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'force potassium into everything and initially saturate' is the wordplay.
'force' becomes 'f' (scientific abbreviation).
'potassium' becomes 'K' (K is the chemical symbol for potassium).
'into' is an insertion indicator.
'everything' becomes 'all' (all things).
'initially' suggests taking the first letters.
The initial letter of 'saturate' is 's'.
'k' going inside 'all' is 'alkl'.
'f'+'alkl'+'and'+'s'='FALKLANDS'

Can you help me to learn more?

(Another definition for falklands that I've seen is " South Atlantic islands".)

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

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