Animal fur is trimmed (5)
I believe the answer is:
coati
'animal' is the definition.
(mammal of Central and South America)
'fur is trimmed' is the wordplay.
'fur' becomes 'coat' (an animal's coat).
'trimmed' means to remove the last letter (the final letter is trimmed off).
'is' with its last letter removed is 'i'.
'coat'+'i'='COATI'
(Other definitions for coati that I've seen before include "Furry animal" , "Flesh-eating mammal" , "omnivorous mammal" , "omnivore?" , "Raccoon-like animal of Central and S. America" .)