Acclivity (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">acclivity</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for slope that I've seen before include "A rise, possibly" , "Tilt with poles" , "Gradient, incline" , "bank" , "See 28" .)