In Tunis Angelo cooked a small lobster (11)

I believe the answer is:

langoustine

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

'lobster' is the definition.
(I know that langoustine is a type of lobster)

'in tunis angelo cooked a small' is the wordplay.
'tunis angelo' can be anagrammed to 'LANGOUSTINE'.
However, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for langoustine that I've seen before include "Norway lobster" , "Shellfish" , "Crustacean" , "Swimmer" .)

I've seen this clue in the Sydney Morning Herald.

Want a hint initially instead of a full solution? Install my app