Arrow shark (7)
I believe the answer is:
pointer
This clue might be a double definition.
'arrow' is the first definition.
(I know that arrow can be written as pointer)
'shark' is the second definition.
The definition and answer can be both animals as well as being singular nouns.
Maybe they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for pointer that I've seen before include "Game dog, used for its ability to scent" , "Hint (for a dog?)" , "Dog < or horse or" , "Sign" , "Tip; dog" .)