Crafty animal getting last of food (6)
I believe the answer is:
shrewd
'crafty' is the definition.
(I've seen this before)
'animal getting last of food' is the wordplay.
I cannot really see how this works, but
'animal' could be 'shrew' (shrew is a kind of animal) and 'shrew' is found within the answer.
'food' could be 'd' (D is an example) and 'd' is present in the answer.
No letters remain.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for shrewd that I've seen before include "Wily" , "Astute in business" , "sharp" , "Canny and with sound judgement" , "Sharp-witted" .)