Stomach is churning with sodas — they make it sore (14)

I believe the answer is:

sadomasochists

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'they make it sore' is the definition.
The definition suggests an adverb but the answer is not.

'stomach is churning with sodas' is the wordplay.
'churning with' indicates anagramming the letters.
'stomach'+'is'='stomachis'
'stomachis' with its letters mixed up with 'sodas' makes 'SADOMASOCHISTS'.

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I've seen this clue in The Independent.

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