They are available in continental estaminets (4)

I believe the answer is:

ales

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'they' is the definition.
Both the answer and definition are plural nouns.
Perhaps there's a link between them I don't understand?

'available in continental estaminets' is the wordplay.
'available in' indicates a hidden word.
'ALES' is hidden within 'continental estaminets'.

'are' is the link.

Can you help me to learn more?

(Other definitions for ales that I've seen before include "A sale of beers" , "Alcoholic drinks" , "What might be delivered by pumps" , "Types of beer" .)

I've seen this clue in The Irish Independent.

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