Fancy business twice supports Europe hub (6)
I believe the answer is:
rococo
'fancy' is the definition.
(similar in meaning)
'business twice supports europe hub' is the wordplay.
'business' becomes 'co' (short for company).
'twice' shows that letters should be duplicated.
'supports' means one lot of letters go next to another (bottom letters provide a support for the top ones).
'europe hub' becomes 'ro' (I can't explain this - if you can you should believe this answer much more).
'co' doubled is 'coco'.
'coco' put after 'ro' is 'ROCOCO'.
Can you help me to learn more?
(Other definitions for rococo that I've seen before include "Eighteenth-century French architectural style" , "Grotesque" , "Elaborate late baroque style" , "Delicate architectural style from 18th-century France" , "Ornate late baroque style" .)