Hardly a crazy traveller (5)
I believe the answer is:
nomad
'traveller' is the definition.
(nomad is a kind of traveller)
'hardly a crazy' is the wordplay.
'hardly' becomes 'no' (eg 'hardly a meal' means 'not a meal' or 'no meal').
'a crazy' becomes 'mad' (I've seen this before).
'no'+'mad'='NOMAD'
(Other definitions for nomad that I've seen before include "Damon (anag.)" , "Unsettled type" , "Unsettled character" , "wandering type" , "Person always on the move" .)