New teacher not good about Australia: 'It's a tiny country' (5)
I believe the answer is:
nauru
'tiny country' is the definition.
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for nauru that I've seen before include "Small Pacific republic" , "Smallest Pacific state" , "Pacific republic, formerly Pleasant Island" , "Pacific island country" , "SW Pacific republic" .)