Crossword Genius

Ring back about taking old snake (4,5)

Ross

I believe the answer is:

king cobra

I'm a little stuck... Click here to teach me more about this clue!

This clue might be a double definition.

'ring back about taking old' is the first definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.

'snake' is the second definition.
(king cobra is a kind of snake)

Can you help me to learn more?

(Other definitions for king cobra that I've seen before include "Venomous type" , "Large Asiatic snake" , "Large venomous hooded snake" , "hooded killer" , "enormous snake" .)

I've seen this clue in The Daily Express.
Want a hint initially instead of a full solution? Install my app