Swelling family, his, confused like yokels (10)

I believe the answer is:

bumpkinish

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'yokels' is the definition.
The definition and answer are not the same part of speech.

'swelling family his confused' is the wordplay.
'swelling family' becomes 'bumpkin' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'confused' is an anagram indicator.
'his' anagrammed gives 'ish'.
'bumpkin'+'ish'='BUMPKINISH'

'like' is the link.

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I've seen this clue in The Times.

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