It might provide shelter from cold hail (4)

I believe the answer is:

cave

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'it might provide shelter' is the definition.
The definition suggests a singular noun which matches the answer.

'cold hail' is the wordplay.
'cold' becomes 'C' (eg on taps).
'hail' becomes 'ave' (greeting in Latin).
'c'+'ave'='CAVE'

'from' is the link.

Can you help me to learn more?

(Other definitions for cave that I've seen before include "part of rocky coastline?" , "Troglodyte's home" , "Large grotto" , "Aladdin, Fingal, had one" , "Natural underground space" .)

I've seen this clue in The Independent.

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