A snake who ravaged a woodland full of acorns (9)

I believe the answer is:

oakenshaw

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

'acorns' is the definition.
I know nothing about this answer so I can't tell whether this works.

'a snake who ravaged a woodland full' is the wordplay.
'a snake who' anagrams to 'OAKENSHAW'.
Though, I'm not sure how the anagram is indicated.

'of' is the link.

Can you help me to learn more?

(Another definition for oakenshaw that I've seen is " small wood".)

I've seen this clue in The Hindu.

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