The ornament is in the hold (5)
I believe the answer is:
clasp
'the hold' is the definition.
(synonyms)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for clasp that I've seen before include "Catch; embrace" , "Jewellery fastener" , "Grasp firmly" , "Hook" , "Bar on a medal ribbon" .)