Small wasp sized individual, one of many flying around the borders of the allotment. Unsure if its a hornet, wasp or some sort of mimic
No interactions present.
I don't know what it is but the fact that you describe it as a "small wasp" pretty much rules out hornet.
Lat/Lng: 53.343241864108, -2.7437362074852
OS grid ref: SJ505831
established allotments with a diverse array of invertebrates