It can make one glad to be in Ireland (7)

I believe the answer is:

donegal

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'be in ireland' is the definition.
The definition suggests a singular noun which matches the answer.

'it can make one glad' is the wordplay.
'it can make' indicates anagramming the letters.
'one'+'glad'='oneglad'
'oneglad' anagrammed gives 'DONEGAL'.

'to' is the link.

Can you help me to learn more?

(Other definitions for donegal that I've seen before include "Lean dog (anag) - Irish county" , "Irish town" , "County of NW Ireland" , "Ireland's northmost county" , "Northernmost Irish county" .)

I've seen this clue in the Evening Standard.

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