Huck's transport (4)
I believe the answer is:
raft
'huck's transport' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for raft that I've seen before include "River transport" , "water transport" , "Structure made of timber" , "Floating platform of logs, planks, etc" , "Buoyant platform" .)