Saint in Kansas is very bad (6)

I believe the answer is:

stinks

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'is very bad' is the definition.
I can't judge whether this defines the answer.

'saint in kansas' is the wordplay.
'saint' becomes 'st' (abbreviation).
'kansas' becomes 'KS' (abbreviation).
'st'+'in'+'ks'='STINKS'

Can you help me to learn more?

(Other definitions for stinks that I've seen before include "Smells unpleasant" , "Smells to high heaven" , "Chemistry (school slang)" .)

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