Driving fan parking here at old ground (10)
I believe the answer is:
petrolhead
'driving fan' is the definition.
The definition suggests a singular noun which matches the answer.
'parking here at old ground' is the wordplay.
'parking' becomes 'p' (abbreviation on road signs).
'ground' is an anagram indicator ('grind' the letters into a new form).
'here'+'at'+'old'='hereatold'
'hereatold' anagrammed gives 'etrolhead'.
'p'+'etrolhead'='PETROLHEAD'
Can you help me to learn more?
(Other definitions for petrolhead that I've seen before include "Motoring fanatic" , "Car lover" .)