Irish Mail on Sunday

[supermick]

11 across. Finland to the Finns (5 letters) S * * * I
18 across. Annoys, irritates (4 letters) * * G *
18 down. India to some Indians (6 letters) * * A * A *
8 down. Classical music compositions (8 letters) * * * C * R * I

[Lie-in King]

11a Suomi
18a Bugs
18d Bharat
8d Concerti

[Jumbo747]

11 Suomi
8 Concerti

[Touchstone]

concerti

[poortony]

11a Suomi
18a Nags
8d concerti

[headwreck]

poortony, i have bugs, it fits with answer down

[poortony]

Yes Headwreck I was wrong, thank you for 18d.
Happy comping

[supermick]

Thank you very much Lie-in-King and everyone else who replied.