Antipodean principal, small of stature reportedly (4)
I believe the answer is:
kiwi
'antipodean' is the definition.
(someone from New Zealand, one of the antipodes)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for kiwi that I've seen before include "one with big bill" , "Flightless NZ bird" , "Fruit and flightless bird" , "N Zealand bird" , "Rutherford was one" .)