Doctor on leave gets dope from Australia (6)
I believe the answer is:
drongo
'dope from australia' is the definition.
(Australian term for a stupid person)
'doctor on leave' is the wordplay.
'doctor' becomes 'Dr' (abbreviation).
'leave' becomes 'go'.
'dr'+'on'+'go'='DRONGO'
'gets' acts as a link.
(Other definitions for drongo that I've seen before include "dope" , "Bird - Aussie fool - Gordon (anag)" , "No-hoper" , "Bird -- idiot (in Australia)" , "Australian fool - Gordon (anag)" .)