Toothy beast jumping at oranges -- only some taken (5)
I believe the answer is:
gator
'toothy beast' is the definition.
(short for alligator)
'jumping at oranges only some taken' is the wordplay.
'only some taken' indicates the answer is hidden within the clue.
'GATOR' is hidden within 'jumping at oranges'.
(Other definitions for gator that I've seen before include "Crocodilian (informal)" , "Informal American term for semi-aquatic reptile" , "beast?" , "Short reptile" , "One taking snaps" .)