Crossword Genius

Shun holiday walking in Antarctica? (5,3,2,3,4)

Ross

I believe the answer is:

leave out in the cold

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

'antarctica?' is the definition.
I know nothing about this answer so I can't judge whether this works.

'shun holiday walking in' is the wordplay.
I cannot really understand how this works, but
'holiday' could be 'leave' (I've seen this before) and 'leave' is found within the answer.
'in' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Another definition for leave out in the cold that I've seen is " Neglect, ignore (5,3,2,3,4)".)

I've seen this clue in The Times.
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