Making dignified exit, nudists initially leave jewellery behind! (9)
I believe the answer is:
ennobling
'making dignified' is the definition.
I can't judge whether this defines the answer.
'exit nudists initially leave jewellery behind' is the wordplay.
'initially' suggests taking the first letters.
'leave' becomes 'no' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'jewellery' becomes 'bling' (informal term for jewellery).
'behind' says to put letters next to each other.
The initial letters of 'exit nudists' is 'en'.
'en'+'no'+'bling'='ENNOBLING'
Can you help me to learn more?
(Other definitions for ennobling that I've seen before include "Entitling" , "Making one count, perhaps" , "Honouring" .)