
1) British hill 2) British mountain 3) British elevation 4) British peak 5) Elevation in Europe 6) European mountain 7) European hill 8) European elevation 9) European peak 10) Hill in Europe 11) Hill in the United Kingdom 12) Mountain in Europe 13) Peak in the United Kingdom 14) Peak in Europe
Found on
https://www.crosswordclues.com/clue/caisteal

castle or tower
Found on
http://www.munromagic.com/Glossary.cfm
No exact match found.