Little yellow flowers - little oval leaves
No interactions present.
I would agree that it's Bird's Foot-trefiol but I think it is difficult to say if it is Greater or Common as the leaves are not very clear on the picture.If you have any more it may help pin it down
Lat/Lng: 50.7914, 0.2162
OS grid ref: TQ562014
Typical grassland of the South Downs, Sussex