Pacific neckwear to chill by the ear (4)

I believe the answer is:

leis

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'pacific neckwear' is the definition.
'leis' can be an answer for 'neckwear' (I've seen this in another clue). I'm not sure about the 'pacific' bit.

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for leis that I've seen before include "Hawaiian garlands" , "Isle (anag) - Polynesian garlands" .)

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

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