Sphere, globe (3)
I believe the answer is:
orb
I believe this clue is a double definition.
'sphere' is the first definition.
(orb is a kind of sphere)
'globe' is the second definition.
(I know that globe can be written as orb)
(Other definitions for orb that I've seen before include "Item of insignia" , "Sphere for a sovereign" , "Ornamental sphere" , "Sphere (found in regalia)" , "Sovereign artefact" .)