Possible Clues:

• Five-toed pachyderms
• Pachyderms
• Largest animals
• Animals from the palest hen
• They could make trunk calls
• They bear large trunks for local Irish drunk
• Peel off county and church and I would find Kipling's little giant
• They haven't got 13 across but peel it over Hampshire
• Big beasts
• White --