Independent? Independent participating in belly dancing, unforgettably (9)
I believe the answer is:
indelibly
'unforgettably' is the definition.
Both the definition and answer are adverbs. Perhaps there's an association between them I don't understand?
'independent? independent participating in belly dancing' is the wordplay.
'independent?' becomes 'ind' (politics abbreviation).
'independent' becomes 'i'.
'participating in' indicates putting letters inside.
'dancing' indicates anagramming the letters.
'belly' is an anagram of 'elbly'.
'i' going inside 'elbly' is 'elibly'.
'ind'+'elibly'='INDELIBLY'
Can you help me to learn more?
(Other definitions for indelibly that I've seen before include "Ineradicably" , "permanently" .)