Like Brazil? Unhinged! (5)

I believe the answer is:

nutty

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

This clue could be a double definition.

'like brazil?' is the first definition.
(I've seen this before)

'unhinged' is the second definition.
Both the definition and answer are adjectives. Maybe they are linked in a way I don't understand?

Can you help me to learn more?

(Other definitions for nutty that I've seen before include "like Brazil" , "Out to lunch" , "19 [LUNATIC]" , "Crackers" , "Like hard fruit; mad" .)

I've seen this clue in The Times.

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