Get rid of judge with jumbled notes about it returned (8)
I believe the answer is:
jettison
'get rid of' is the definition.
(I've seen this before)
'judge with jumbled notes about it returned' is the wordplay.
'judge' becomes 'j' (**).
'with' says to put letters next to each other.
'jumbled' is an anagram indicator.
'about' means one lot of letters goes inside another.
'returned' shows that the letters should be reversed in order.
'it' in reverse letter order is 'ti'.
'notes' anagrammed gives 'etson'.
'etson' going around 'ti' is 'ettison'.
'j'+'ettison'='JETTISON'
(Other definitions for jettison that I've seen before include "Abandon or throw overboard" , "Throw (into the sea)" , "Throw away (from ship or aeroplane?)" , "Reject" , "Ditch (cargo)" .)