Wheelchair incline (4)
I believe the answer is:
ramp
'wheelchair incline' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ramp that I've seen before include "Inclined plane; swindle" , "Slope between levels" , "Slope - swindle" , "Inclined walkway" , "Inclined path" .)