Parking on drive with incline (4)
I believe the answer is:
ramp
'incline' is the definition.
(synonyms)
'parking on drive' is the wordplay.
'parking' becomes 'p' (abbreviation on road signs).
'on' says to put letters next to each other.
'drive' becomes 'ram' (RAM drive on a computer).
'p' put after 'ram' is 'RAMP'.
'with' is the link.
(Other definitions for ramp that I've seen before include "what could be criminal offence" , "Inclined surface - swindle" , "Inclined walkway" , "Short slope" , "Sloping walkway" .)