Lecturer going to a talk about new Australian food (7)
I believe the answer is:
lasagna
'food' is the definition.
(lasagna is a kind of food)
'lecturer going to a talk about new australian' is the wordplay.
'lecturer going' becomes 'la' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to a talk' becomes 'gas' (I've seen this before).
'about' says the letters should be written backwards.
'new' becomes 'n'.
'australian' becomes 'a'.
'gas' in reverse letter order is 'sag'.
'la'+'sag'+'n'+'a'='LASAGNA'
Can you help me to learn more?
(Other definitions for lasagna that I've seen before include "Italian cooking" , "Broad flat pasta" , "pasta's provided" , "Italian food" , "Italian dish" .)