Couple permitted to make wrist ornament (8)
I believe the answer is:
bracelet
'wrist ornament' is the definition.
(I've seen this before)
'couple permitted' is the wordplay.
'couple' becomes 'brace' (brace can mean a pair of something).
'permitted' becomes 'let' (to let something happen is to permit it).
'brace'+'let'='BRACELET'
'to make' acts as a link.
(Other definitions for bracelet that I've seen before include "charm?" , "Ornamental wristband" , "16 [ADORNMENT]" , "Item of jewellery found in Crete lab" , "Band around the wrist" .)