Creatures you might get a loan from
I believe the answer is:
sharks
'creatures' is the definition.
The answer and definition can be both animals as well as being plural nouns.
Maybe you can see an association between them that I can't see?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for sharks that I've seen before include "Feared fishes, may be basking or hammerhead" , "Large carnivorous fish" , "Voracious sea fish" .)