A well-rounded part in 'Major Barbara' (3)
I believe the answer is:
orb
'a well-rounded part' is the definition.
'orb' can be an answer for 'part' (orb is a kind of part). I am unsure of the 'a well-rounded' bit.
'in major barbara' is the wordplay.
'in' says the answer is hidden in the clue.
'ORB' can be found hidden inside 'major barbara'.
Can you help me to learn more?
(Other definitions for orb that I've seen before include "Sovereign artefact" , "Part of royal regalia" , "A sphere or globe" , "ball with cross" , "Ornamental globe" .)