Rte

[crosswordfan]

north south dail possibly {6}

[elliemay1]

island??

[scorpiojo]

No letters?

[elliemay1]

Anag of n(north) s(south)+ dail
My reasoning: If it was a north + south dáil (Eire's parliament) then it would be all Ireland, thus an island!

[poorclare]

The full clue given for 23d North-South, Dail, possibly? Geo-politically, isn't it what we live on? (6) ~ ISLAND.

If you give the full clue, it makes it easier for us at AB to help
you.
Please and Thank you wouldn't go amiss.

[elliemay1]

Thanks for clarifying that clare, yes full clue usually helps!