1. An African nocturnal burrowing mammal with long ears and snout that eats termites
Your answer:
2. It follows Blaenau in the name of a town in North Wales formerly known for slate quarries and now better known for its nearby narrow gauge railway
3. Uncannily frightening, disturbing or weird
4. An extensive grassy treeless plain, especially one in South America
5. The deep sound made by brass instruments, eg a military band