American friend has gone round the globe (3)
I believe the answer is:
orb
'the globe' is the definition.
(synonyms)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for orb that I've seen before include "Item of insignia" , "Heavenly body" , "Sphere - eye" , "Ring" , "Jewelled ornament" .)