Related Clues:
- Offspring of male donkeys and female horses
- Hybrid offsprings of a male donkey and a female horse
- They go on foot, though one goes on their back, yet there's no back to them
- Crosses on foot or on the hoof
- Given to gloom
- Liable to sulking
- Footwear for pack animals
- Some slippers
- Stubborn ones
- Slippers for the stubborn?
- Apt to sulk
- Hardly chipper
- Living in a swing state?
- Subject to emotional swings
- Low, deplorably heartless and sullen