Hill-climbing traveller? (5)
I believe the answer is:
nomad
'traveller?' is the definition.
(nomad is a kind of traveller)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for nomad that I've seen before include "Itinerant" , "one must move on" , "drifter" , "Wanderer" , "Member of a wandering pastoral community" .)