European motored about — this could prove it (8)
I believe the answer is:
odometer
'this could prove it' is the definition.
The definition suggests a singular noun which matches the answer.
'european motored about' is the wordplay.
'european' becomes 'e' (abbreviation e.g. EU).
'about' indicates anagramming the letters.
'e'+'motored'='emotored'
'emotored' is an anagram of 'ODOMETER'.
Can you help me to learn more?
(Other definitions for odometer that I've seen before include "Measurer of distance travelled on wheels" , "It shows distance travelled" , "Remote do (anag.)" , "It measures distance travelled on wheels" , "one showing our travel?" .)