
1) Island of County Mayo
Found on
https://www.crosswordclues.com/clue/illanmaster

Illanmaster or Illaunmaistir ({Irish place name|Oileán Máistir}) is an uninhabited steep rocky island rising to about 100m, lying just off the north coast of County Mayo, Ireland and 19km west of Ballycastle. Grid ref: F 933 435. The island is separated from the mainland by a narrow sound. ==Wildlife== It has breeding puffins and storm petrels, ...
Found on
http://en.wikipedia.org/wiki/Illanmaster
No exact match found.