One moving perhaps around Baltic capital sees parakeet (10)
I believe the answer is:
budgerigar
'parakeet' is the definition.
(budgerigar is a kind of parakeet)
'one moving perhaps around baltic capital' is the wordplay.
'one moving perhaps' becomes 'budger' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'around' means one lot of letters goes inside another.
'baltic capital' becomes 'Riga' (capital of Latvia, a Baltic nation).
'budger' going around 'riga' is 'BUDGERIGAR'.
'sees' is the link.
Can you help me to learn more?
(Other definitions for budgerigar that I've seen before include "Colourful bird" , "Aussie native" , "Bird commonly kept as a pet" , "one on the wing" , "Australian parakeet" .)