No nuts for a wanderer (5)
I believe the answer is:
nomad
'for a wanderer' is the definition.
(nomad is a kind of wanderer)
'no nuts' is the wordplay.
'nuts' becomes 'mad' (informal term).
'no'+'mad'='NOMAD'
(Other definitions for nomad that I've seen before include "Unsettled character" , "someone who can't settle" , "One travels from place to place with no permanent home" , "Unsettled type" , "Member of travelling people" .)