Correct spelling for the English word "Attle" is [ɐtlˈɛ], [ɐtlˈɛ], [ɐ_t_l_ˈɛ] (IPA phonetic alphabet).
A term used in Cornwall for rubbish thrown out of a mine, containing little or no ore.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.