See animal go on rampage in bush (8)

I believe the answer is:

magnolia

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

'in bush' is the definition.
'magnolia' can be an answer for 'bush' (I've seen this before). I am not certain of the 'in' bit.

'see animal go on rampage' is the wordplay.
'animal go' anagrams to 'MAGNOLIA'.
Though, I am not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for magnolia that I've seen before include "tree blossoms" , "ornamental tree" , "Mississippi, the ___ State - tree or shrub" , "Tree; pale creamy-white" , "Tinted white colour" .)

I've seen this clue in The Telegraph.

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