Cause to undergo dialysis, so some suffered (6)

I believe the answer is:

osmose

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

'cause to undergo dialysis' is the definition.
I can't judge whether this defines the answer.

'so some suffered' is the wordplay.
'suffered' is an anagram indicator (I've seen 'suffers' mean this).
'so'+'some'='sosome'
'sosome' anagrammed gives 'OSMOSE'.

Can you help me to learn more?

(Other definitions for osmose that I've seen before include "Pass through a semi-permeable membrane" , "absorb stuff gradually" , "Assimilate unconsciously" , "extract" , "Diffuse through membrane" .)

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

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