How a wanderer may get out of line (7)
I believe the answer is:
deviate
'out of line' is the definition.
The answer and definition can be both to do with fundamental existence as well as being verbs in their base form.
Maybe there's an association between them I don't understand?
'how a wanderer' is the wordplay.
I cannot really understand how this works, but
'a' is found in the answer.
'wanderer' could be 'i' (where the crossword setter is 'Wanderer') and 'i' is located in the answer.
This explanation may well be incorrect...
'may get' acts as a link.
Can you help me to learn more?
(Other definitions for deviate that I've seen before include "Change from a course or standard" , "Depart from an established course" , "Turn aside from accepted way" , "Turn aside from course of action" , "Differ" .)