See brute roam around botanical garden (9)

I believe the answer is:

arboretum

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'botanical garden' is the definition.
(synonyms)

'see brute roam' is the wordplay.
'brute roam' anagrams to 'ARBORETUM'.
But, I'm not sure how this is indicated.

'around' acts as a link.

Can you help me to learn more?

(Other definitions for arboretum that I've seen before include "Place for cultivation of trees" , "Collection of elders, say" , "Tree display centre" , "area with great growth" , "Place for cultivation of 19s" .)

I've seen this clue in The Daily Express.

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