Sloping walkways (5)
I believe the answer is:
ramps
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sloping walkways</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ramps that I've seen before include "Gradients" , "Small road ridges for prams" , "Slopes to calm traffic" , "Slopings passages" , "Sloping passages" .)