Height enhancers (6)
I believe the answer is:
stilts
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">height enhancers</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 stilts that I've seen before include "Tall sticks for lofty walking" , "Sticks to wall on" , "Poles used for walking high above the ground" , "Long sticks for elevated walking" , "Walking poles; birds" .)