Related Clues:

• Animal in river basin, with endless delight
• Beast in river almost squashing duck
• African animal
• Animal that's right at home in house
• Animals in river bank charm endlessly
• Horned pachyderm
• One protected by terrible horn
• Personnel given a raise in old, old money
• Horned charger of Africa
• Thick-skinned ungulate
• Something you might get a charge out of
• Richardson drops cards for endangered type
• Second-largest land animal
• Savanna heavyweight
• Where to see the horn of Africa?