Kenneth Grahame's gentleman amphibian from The Wind in the Willows (4)

I believe the answer is:

toad

(Other definitions for toad that I've seen before include "Ugly creature, jewel in head (AYLI)" , "Ancestral hall on River Bank" , "driver of reckless repute" , "Amphibian with warts" , "Stout-bodied amphibian" .)

I've seen this clue in The Guardian.

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