Not a fanatical wanderer (5)
I believe the answer is:
nomad
'wanderer' is the definition.
(nomad is a kind of wanderer)
'not a fanatical' is the wordplay.
'not' becomes 'no' (I've seen this in other clues).
'a fanatical' becomes 'mad' (I've seen this in another clue).
'no'+'mad'='NOMAD'
(Other definitions for nomad that I've seen before include "one of those with no fixed home" , "Rover" , "one must move on" , "One keeps moving" , "Wanderer" .)