Not a crazy wanderer (5)
I believe the answer is:
nomad
'wanderer' is the definition.
(I know that Nomad is a type of wanderer)
'not a crazy' is the wordplay.
'not' becomes 'no' (I've seen this in other clues).
'a crazy' becomes 'mad' (I've seen this before).
'no'+'mad'='NOMAD'
(Other definitions for nomad that I've seen before include "wandering type" , "being domestically unstable" , "Person always on the move" , "Migrant" , "someone who can't settle" .)