The song was collected in Batley,Yorks (by Tony Green from Tom Daniel) if that helps to localise the dialect (mind you,the song writer may not have been from Batley). I lived in nLancs for 20 years where people did say clemmed,(and "starved" for "cold"), but I've never heard anyone say guttle, outside of that song.As to what they say in Yorkshire...who knows? Not me