Mother, say, staying in area with work, as far as one knows (10)
I believe the answer is:
apparently
'far as one knows' is the definition.
I can't tell whether this definition defines the answer.
'mother say staying in area with work' is the wordplay.
'mother say' becomes 'parent' (mother is a kind of parent).
'staying in' is an insertion indicator.
'area' becomes 'a' (maths abbreviation).
'with' is a charade indicator (letters next to each other).
'work' becomes 'ply' (to ply a trade is to work at it).
'a'+'ply'='aply'
'parent' placed inside 'aply' is 'APPARENTLY'.
'as' acts as a link.
Can you help me to learn more?
(Other definitions for apparently that I've seen before include "On the face of it" , "so it seems" , "Seemingly" , "Clearly" .)