Gets hot and rain comes through to the central regions (6)

I believe the answer is:

hearts

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'regions' is the definition.
(heart is a kind of region)

I can't explain the rest of the clue.

(Other definitions for hearts that I've seen before include "Major suit at cards" , "Body pumps" , "Card suits in bodies" , "Cores" , "Red suit" .)

I've seen this clue in the Evening Standard.

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