He has helped transform views of agriculture with his hit television show Clarkson's Farm. The 18th Century, grade II-listed building is a stone's throw from Hawkstone Brewery, where beer is produced using malted barley from his Diddly Squat Farm in Oxfordshire. Jeremy Clarkson is understood to be interested in snapping up the Coach and Horses Inn, in Bourton-on-the-Water, a picture-postcard …