Reconstituted a danger in the West Indies (7)

I believe the answer is:

grenada

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

'in the west indies' is the definition.
('Grenada' is part of 'west indies')

'reconstituted a danger' is the wordplay.
'a danger' anagrams to 'GRENADA'.
But, I'm not clear how this is indicated.

Can you help me to learn more?

(Other definitions for grenada that I've seen before include "Island N. of Trinidad" , "West Indian island" , "W, Indies island" , "West Indian country" , "A garden (anag) - Caribbean island" .)

I've seen this clue in The Irish Independent.

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