Animal from Channel Islands eating grass (5)
I believe the answer is:
coati
'animal' is the definition.
(I've seen this before)
'channel islands eating grass' is the wordplay.
'channel islands' becomes 'ci'.
'eating' indicates putting letters inside.
'grass' becomes 'oat' (I've seen this in other clues).
'ci' going around 'oat' is 'COATI'.
'from' acts as a link.
(Other definitions for coati that I've seen before include "Oi cat ! (anag.)" , "Tropical animal" , "American denizen" , "American mammal related to raccoon" , "Racoon-like omnivorous creature of Central and South America" .)