Giant iguanas covering island (7)

I believe the answer is:

antigua

'island' is the definition.
(I've seen this before)

'giant iguanas covering' is the wordplay.
'covering' says the answer is hidden in the clue.
'ANTIGUA' is hidden in the letters of 'giant iguanas'.

(Other definitions for antigua that I've seen before include "Caribbean island linked with Barbuda" , "One of the Leeward Islands" , "warm island" , "West Indies island" , "Aga unit in the West Indies" .)

I've seen this clue in The Telegraph.

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