Strike central Australian as a monster (7)
I believe the answer is:
chimera
'a monster' is the definition.
(I know that Chimera is a type of mythical creature)
'strike central australian' is the wordplay.
'strike' becomes 'chime' (I can't explain this - if you can you should believe this answer much more).
'central' indicates the central letters.
The middle of 'australian' is 'ra'.
'chime'+'ra'='CHIMERA'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for chimera that I've seen before include "Illusory achievement; mythical beast" , "Mythological monster" , "fabulous creature" , "Lion-headed monster" , "Mythical creature; delusion" .)