I’ve driven past this many a time... yet never stopped to have a look to date. A sorry state of affairs which I’ll need to rectify at some point.
According to our friends at Coflein this is:
“A ploughed down round barrow 9.0m in diameter and 0.3m high. It lies on a narrow strip of common land between cultivated fields. Its neighbour, less fortunate 21m NNE in an arable field, has been obliterated......RCAHMW AP955059/42”