Scrambled brain? I'm cooler (7)

I believe the answer is:

minibar

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

'cooler' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'scrambled brain? i'm' is the wordplay.
'scrambled' is an anagram indicator.
'brain'+'im'='brainim'
'brainim' with letters rearranged gives 'MINIBAR'.

Can you help me to learn more?

(Other definitions for minibar that I've seen before include "Hotel room chiller?" , "cooler for hotel guest?" , "Source of hotel room drinks" , "Temptation in hotel room" , "Hotel bedroom fridge" .)

I've seen this clue in The Telegraph.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.