Buckle up now dude or get hurt! (7)

I believe the answer is:

wounded

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

'hurt' is the definition.
(I know that hurt can be written as wounded)

'buckle up now dude or' is the wordplay.
'now dude' can be anagrammed to 'WOUNDED'.
But, I am not clear how the anagram is indicated.

'get' acts as a link.

Can you help me to learn more?

(Other definitions for wounded that I've seen before include "Suffering from injury" , "Injured in battle" , "Caused injury" , "Hurt" .)

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

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