Spilled his ale? Some Aussie girl? (6)
I believe the answer is:
sheila
'some aussie girl?' is the definition.
(I've seen this in another clue)
'spilled his ale?' is the wordplay.
'spilled' is an anagram indicator.
'his'+'ale'='hisale'
'hisale' is an anagram of 'SHEILA'.
(Other definitions for sheila that I've seen before include "Aussie lady?" , "Informally, a girl or woman in Australia" , "Girl's name; Six down (anag.)" , "Australian girl or woman" , "Girl's name (any Oz girl?)" .)