Client wants some foreign jewellery item (9)
'client' is the definition.
(I've seen this before)
'some foreign jewellery item' is the wordplay.
'some foreign' becomes 'de' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'jewellery item' becomes 'pendant' (I've seen this before).
'wants' is the link.
Can you help me to learn more?
(Other definitions for dependant that I've seen before include "Child maybe", "Dented pan? (anag)", "Subject to", "Protg", "Client".)