From one point of view at home then not at home (2,1,3)
I believe the answer is:
in a way
'from one point of view' is the definition.
(both can mean considered in a certain way)
'home then not at home' is the wordplay.
'home' becomes 'in' ('he's home' can mean 'he's in').
'then' means one lot of letters go next to another.
'not at home' becomes 'away' (I've seen this before).
'in'+'away'='IN A WAY'
'at' acts as a link.
(Other definitions for in a way that I've seen before include "To a certain extent" , "To some degree" , "somehow" , "From some points of view" , "from one point of view" .)