Possible Clues:

• In another second there'll be language!
• Language from overseas
• Sounds as if it's for a cockney corpse in a Gaelic sort of way
• Ancient language of the Celts
• Language of the British Isles
• Part of bible's not very old language
• Language used by writers elsewhere
• But surely not Alexander Selkirk's language?
• Language from which 'whiskey' comes
• Certain Celtic language