Country -- nation imbued with Aboriginal light originally (9)
I believe the answer is:
australia
'country' is the definition.
(I know that Australia is an country)
'nation imbued with aboriginal light originally' is the wordplay.
'nation' becomes 'austria' (Austria is an example).
'imbued with' indicates putting letters inside.
'originally' suggests taking the first letters.
The first letters of 'aboriginal light' is 'al'.
'austria' going around 'al' is 'AUSTRALIA'.
(Other definitions for australia that I've seen before include "Commonwealth country" , "Film" , "English speaking nation" , "Large southern country" , "Norfolk and Christmas Islands belong to it" .)