Elevator alternative (6)
I believe the answer is:
stairs
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">elevator alternative</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 stairs that I've seen before include "Series of steps" , "Flights of steps" , "Access consisting of steps" , "A set of rising steps" , "Means of ascent/descent" .)