The meaning may have been 'clearers of the thicket' or 'herb gatherers', referring to clearing land for cultivation or collecting medicinal plants.
ðə mˈiːnɪŋ mˌeɪhɐv bˌɪn klˈɪɹɚz ʌvðə θˈɪkɪt ɔːɹ ˈɜːb ɡˈæðɚɹɚz, ɹᵻfˈɜːɹɪŋ tə klˈɪɹɪŋ lˈænd fɔːɹ kˌʌltɪvˈeɪʃən ɔːɹ kəlˈɛktɪŋ mədˈɪsɪnəl plˈænts.