A round little bird? (5)
I believe the answer is:
robin
'little bird?' is the definition.
(robins are small birds)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for robin that I've seen before include "Garden bird" , "See 7" , "Batman's companion" , "good fellow in the D [DREAM]" , "Popular British bird" .)