"Have never come across the word "tint" as meaning spoilt,"
Accept your def. absolutely Gutcher - I quickly checked the Chambers Scots Dictionary which associates it with "spoilt children" - it also gives, 'lose' or ' a taste or foretaste'
Doesn't make mucvh difference to my singing it as I Anglicised it to 'broke' - not as satisfying as 'tint' but I find myself, as a Sassencach, reluctant to use unfamiliar Scots words.
I understand that a very dear friend, Ex Cambridge scholar, Bob Thomson, now domiciled in Florida, came across the manuscript and gave it to Ewan - who was extremely excited to get it.
Jim Carroll