Rainforest climber (5)
I believe the answer is:
liana
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">rainforest climber</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for liana that I've seen before include "Jungle climber" , "Climbing jungle plant" , "Climbing-plant" , "Tropical forest climber" , "Climbing plant of rainforests" .)