Wanderer bathing old woman in green light (5)
I believe the answer is:
nomad
'wanderer' is the definition.
(I know that Nomad is a type of wanderer)
'old woman in green light' is the wordplay.
'old woman' becomes 'ma' (both can mean someone's mother).
'in' indicates putting letters inside.
'green light' becomes 'nod' (I've seen this in another clue).
'ma' put into 'nod' is 'NOMAD'.
'bathing' is the link.
This may not be correct. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for nomad that I've seen before include "being domestically unstable" , "one of those with no fixed home" , "is one unsettled?" , "Wanderer" , "A member of a wandering tribe" .)