Aussie native is to evade payment (8)

I believe the answer is:

duckbill

'aussie native' is the definition.
(duck-billed platypus)

'evade payment' is the wordplay.
'evade' becomes 'duck' (synonyms).
'payment' becomes 'bill'.
'duck'+'bill'='DUCKBILL'

'is to' is the link.

(Other definitions for duckbill that I've seen before include "Platypus" , "uniquely antipodean creature" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app