Transport for Tarzan (5)
I believe the answer is:
liana
'transport for tarzan' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for liana that I've seen before include "Climbing jungle plant" , "Climbing plant of rainforests" , "Woody climbing tropical plant -- a nail (anag)" , "Climbing-plant" , "Jungle climber" .)