Skateboarder's incline
I believe the answer is:
ramp
'skateboarder's incline' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ramp that I've seen before include "Wheelchair access?" , "what could be criminal offence" , "Inclination - swindle" , "Inclined plane; swindle" , "Smoothed-out stairs" .)