The site is within a copse just protruding into a large sloping field.
I reckon it's a livestock enclosure of somekind. However, the upright stone seems out of place.
Also, if it was field clearence the large stones would be towards the bottom of the field, these are at the top.
When you look out from the site down the field you can see field systems.
If anybody wants exact location details email me. Because you cant (sadly) delete or edit forum posts.
Regs,
Ike