Lament produced by lawyer over rising astonishment at Independence (6)
I believe the answer is:
bewail
'lament' is the definition.
(synonyms)
'lawyer over rising astonishment at independence' is the wordplay.
'lawyer' becomes 'bl' (I've seen this in other clues).
'over' means one lot of letters goes inside another.
'rising' says the letters should be written in reverse (going up in a down clue).
'astonishment' becomes 'awe' (awe is a kind of astonishment).
'at independence' becomes 'i' (I am not sure about this - if you are sure you should believe this answer much more).
'awe' reversed gives 'ewa'.
'ewa'+'i'='ewai'
'bl' going around 'ewai' is 'BEWAIL'.
'produced by' acts as a link.
Can you help me to learn more?
(Other definitions for bewail that I've seen before include "Express grief" , "Loudly regret" , "Moan" , "Goose-liver pate" , "Greatly lament" .)