Hollow Tor is one of the granite outcrops that make Dartmoor walking so satisfying: a named rise, weathered rock, and wide moorland views without needing a complicated route. From Widecombe, it gives you a manageable way to step out of the village and into open country.
The tor is not as famous as Haytor or Hound Tor, and that is part of the appeal. Bring proper footwear, watch the weather, and treat it as one piece of a broader Dartmoor walk rather than a single-point attraction.