Gannet caught in trap, I guess (3)

I believe the answer is:

pig

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

'gannet' is the 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?

'caught in trap i guess' is the wordplay.
'caught in' says the answer is hidden in the clue.
'PIG' is hidden within 'trap i guess'.

Can you help me to learn more?

(Other definitions for pig that I've seen before include "Eat ravenously" , "Difficult task" , "Hog" , "Empress of Blandings?" , "Greedy eater" .)

I've seen this clue in The Telegraph.

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