Some snide characters on tour in Iowa (9)

I believe the answer is:

desmoines

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'tour in iowa' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'some snide characters' is the wordplay.
'characters' is an anagram indicator.
'some'+'snide'='somesnide'
'somesnide' is an anagram of 'DESMOINES'.

'on' acts as a link.

Can you help me to learn more?

(Another definition for desmoines that I've seen is " state capital".)

I've seen this clue in The Irish Times.

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