Necklace fasteners (6)
I believe the answer is:
clasps
'necklace fasteners' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for clasps that I've seen before include "Holds or embraces closely" , "Holds the fastenings to one's bosom" , "Embraces, hugs" , "Embraces; fastenings" , "Fasteners, as on necklaces perhaps" .)