Grasp some camouflaged snakes (4)

I believe the answer is:

asps

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

'snakes' is the definition.
(asp is a kind of snake)

'grasp some camouflaged' is the wordplay.
'ASPS' is hidden within the letters.
But, I am unsure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for asps that I've seen before include "Cleopatra's cobras" , "Deadly snakes" , "because of their venom?" , "Small venomous snakes" , "Egyptian cobras" .)

I've seen this clue in The Irish Times.

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