Cherishing piece of jewellery received after making fuss (7)
I believe the answer is:
adoring
'received after making fuss' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives sometimes mean the same thing.
'cherishing piece of jewellery' is the wordplay.
'cherishing' becomes 'ado' (I am not sure about this - if you are sure you should believe this answer much more).
'piece of jewellery' becomes 'ring' (type of jewellery item).
'ado'+'ring'='ADORING'
Can you help me to learn more?
(Other definitions for adoring that I've seen before include "Extravagantly indulgent" , "Worshipping; admiring" , "Passionate" , "Giving great love" , "Worshipping the loved one" .)