Is this wanderer sane? (5)
I believe the answer is:
nomad
'is this wanderer sane?' is the definition.
'nomad' can be an answer for 'wanderer' (nomad is a kind of wanderer). I'm unsure of the remainder of the definition.
This is all the clue.
Can you help me to learn more?
(Other definitions for nomad that I've seen before include "Damon (anag.)" , "Member of travelling people" , "is one unsettled?" , "Rover" , "Roamer" .)