Thanks a million Kendall!!
I'm so glad you sorted out that word. We listened to Mick Foster singing it over and over again and still couldn't come up with anything other than a gaelic word!!
I'll need to ask my granny about the "scorcher" as she and her brothers and sisters worked in the Belfast linen mills.
Probably something like burning the ends or ironing the yarn as I've heard ironing referred to as scorching before.

The only other version of the song I've heard is by a County Longford band called "Porter Row" but it's their own arrangement with only the chorus being the same.

All the best,

Yvonne