Fully clothed is perhaps what you need to be, to travel ... (2,4)
I believe the answer is:
in gear
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for in gear that I've seen before include "Having shifted" , "ready to go?" , "like moving heaps?" , "Out of neutral?" , "Dressed up" .)