At home, and not at home, sort of (2,1,3)
I believe the answer is:
in a way
'sort of' is the definition.
(thesaurus)
'at home and not at home' is the wordplay.
'at home' becomes 'in' ('in' can be similar in meaning to 'at home').
'and' is a charade indicator (letters next to each other).
'not at home' becomes 'away' (I've seen this before).
'in'+'away'='IN A WAY'
(Other definitions for in a way that I've seen before include "Sort of, in some respects" , "In some respects, to a limited extent" , "From some points of view" , "Sort of, to a limited extent" , "To some degree" .)