Awfully hot inside. Mum’s brother has to remove gear (8)

I believe the answer is:

unclothe

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'to remove gear' is the definition.
I can't judge whether this definition defines the answer.

'awfully hot inside mum's brother' is the wordplay.
'awfully' indicates an anagram.
'inside' indicates putting letters inside.
'mum's brother' becomes 'uncle' (I am not sure about this - if you are sure you should believe this answer much more).
'hot' with letters rearranged gives 'oth'.
'oth' put within 'uncle' is 'UNCLOTHE'.

'has' acts as a link.

Can you help me to learn more?

(Other definitions for unclothe that I've seen before include "Strip (someone)" , "lay bare" , "Reveal" , "shed" , "Disrobe" .)

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

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