To be in the heart of Wales, is refreshing (3)

I believe the answer is:

ale

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'to be in the heart' is the definition.
I can't tell whether this defines the answer.

'of wales is refreshing' is the wordplay.
'of' indicates a hidden word.
'ALE' is hidden in the letters of 'wales refreshing'.

Can you help me to learn more?

(Other definitions for ale that I've seen before include "Light-coloured beer" , "One beer" , "Traditional beer" , "Sold in 23" , "Booze" .)

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