Lunges wildly round the West Indies, displaying weapon (5,3)

I believe the answer is:

lewis gun

'weapon' is the definition.
(type of machine gun)

'lunges wildly round the west indies' is the wordplay.
'wildly' indicates an anagram.
'round' means one lot of letters goes inside another.
'the west indies' becomes 'wi'.
'lunges' anagrammed gives 'lesgun'.
'lesgun' enclosing 'wi' is 'LEWIS GUN'.

'displaying' acts as a link.

(Another definition for lewis gun that I've seen is " World War One weapon".)

I've seen this clue in The Times.

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