Historical clue formulations

• Resort island in the Firth of Clyde — 2016-02-07
• Firth of Clyde island — 2014-12-31
• Island near Ayr — 2011-09-10
• Firth of Clyde island — 1998-12-19
• Firth of Clyde island — 1998-11-27
• Island off Scotland — 1995-12-10