Crossword Genius

Semiaquatic African mammal (5)

Ross

I believe the answer is:

hippo

(Other definitions for hippo that I've seen before include "Large African beast (abbr)" , "One wallows in mud" , "Large semi-aquatic pachyderm (abbr)" , "One thick-skinned" , "large African creature" .)

I've seen this clue in The Mirror.
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