Ocean wind swirling around a large eastern Pacific region (3,9)

'pacific region' is the definition.
(New Caledonia is an island in the Pacific Ocean)

'ocean wind swirling around a large eastern' is the wordplay.
I cannot really understand how this works, but
'around' could be 'ca' (circa) and 'ca' is found within the answer.
'a' is found in the answer.
'large' could be 'l' (eg in clothes sizes) and 'l' is found within the answer.
'eastern' could be 'e' and 'e' is present in the answer.
This may be the basis of the clue (or it may be nonsense).