A cashel is a ringfort built from stone rather than earthen banks, a form of enclosed farmstead common across early medieval Ireland, typically dating from roughly the fifth to the twelfth centuries. Where earthen ringforts survive as low, grassed-over rings, a cashel retains the weight of its original material, the drystone walling sometimes still legible in the field, sometimes reduced to a scatter of limestone in the grass.

Kilfeilim itself carries an ecclesiastical placename, the prefix "kil" deriving from the Irish "cill", meaning a church or monastic cell, suggesting that this corner of Clare had some early Christian significance before the Norman reorganisation of the Irish church. Cashels in such areas were not religious structures themselves but rather the defended homesteads of farming families of middling or higher status, the stone wall serving as a boundary against cattle theft and a marker of social standing as much as a serious fortification. The proximity of secular and ecclesiastical sites in early medieval Ireland was common, the two often existing in a relationship of mutual support and land tenure.

Beyond its classification as a stone-built ringfort in this particular townland, the detailed record for this site has not yet been made publicly available, which means the finer points of its condition, dimensions, and any associated features remain, for now, out of general reach.