Reportedly, what may keep the wheels turning in European country (6)
I believe the answer is:
greece
'european country' is the definition.
(country in Europe)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for greece that I've seen before include "Modern-day classical Hellas" , "European state" , "Country of southeast Europe" , "Mediterranean republic" , "EU member" .)