Cad's herd spoiled English cheeses (8)

I believe the answer is:

cheddars

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

'english cheeses' is the definition.
'cheddars' can be an answer for 'cheeses' (cheddar is a kind of cheese). I am not sure about the 'english' bit.

'cad's herd spoiled' is the wordplay.
'spoiled' is an anagram indicator.
'cads'+'herd'='cadsherd'
'cadsherd' anagrammed gives 'CHEDDARS'.

Can you help me to learn more?

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

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