Present In further detail to the last party at Edenhead (9)
I believe the answer is:
elaborate
'present in further detail' is the definition.
(I've seen this before)
'the last party at edenhead' is the wordplay.
'last' indicates one should take the final letters.
'party' becomes 'labor' (Labor Party, Australian political party).
'edenhead' becomes 'e' (head letter of 'eden').
The last letter of 'the' is 'e'.
'e'+'labor'+'at'+'e'='ELABORATE'
'to' is the link.
(Other definitions for elaborate that I've seen before include "Complicated - work out" , "Complicate" , "Intricate - ornament" , "Complicated or ornate" , "with added detail" .)