The correct words are as follows:
verse 3 there's bairns wi' guizards at their tail
verse 4 Richts o' the lum; whaur by the blaze
verse 7 Ther's drink and daffin', sang an' dance

guizards= mummers, lum=chimney, daffin=having fun or flirtatious behaviour.
Great song. Try and get the version by Elisa Lemaitre on hr CD "Time wears awa'"