Hawaiian necklace (3)
I believe the answer is:
lei
'hawaiian necklace' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for lei that I've seen before include "Honolulu chain of flowers" , "Flowers worn round the neck" , "Flower arrangements" , "Bloomers on line" , "Garland of flowers, may accompany 5 Down" .)