The SMR has this listed as “A Late Bronze Age or Early Iron Age palisaded hilltop enclosure lying on a gently sloping shelf to the south of the summit of Eldon Hill. The enclosure forms an irregular ‘D’ shape and is defined by a clearly visible stony bank.”
I’d go for stock enclosure as opposed to habitation purely because this site is undefendable being abutted by higher ground to the North.