Beastly medic? (3)
I believe the answer is:
vet
'medic?' is the definition.
(I know that vet is a type of medical specialist)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for vet that I've seen before include "Examine carefully for suitability" , "Ex-serviceman" , "Scrutinise" , "A diminutive animal doctor" , "Animal doctor, in brief" .)