Green nut cocktail poured (9)
I believe the answer is:
untrained
'green' is the definition.
(I've seen this in another clue)
'nut cocktail poured' is the wordplay.
'cocktail' indicates anagramming the letters.
'poured' becomes 'rained' (I've seen this in another clue).
'nut' is an anagram of 'unt'.
'unt'+'rained'='UNTRAINED'
(Other definitions for untrained that I've seen before include "Not taught" , "lay" , "Inexpert" , "Green" , "not qualified?" .)