Possible Clues:

• Place name
• For example spaghetti junction's highest point over city motorway
• Uncle in Stowe keeps small horse, Shetland for instance
• Male entering horse for Derby, for example
• Word derived from place name
• Sandwich, Edam or Champagne
• Place handle from lead on setter's back
• Place name of cat on either side of horse
• For a place, the name "Thomas" is worn by horse
• Name of place in which American uncle stables horse