At home, taking care of planning (9)
I believe the answer is:
intending
'planning' is the definition.
(intending is a kind of planning)
'at home taking care' is the wordplay.
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'taking' is a charade indicator (letters next to each other).
'care' becomes 'tending' (synonyms).
'in'+'tending'='INTENDING'
'of' acts as a link.
(Other definitions for intending that I've seen before include "Meaning; planning" , "Planning, proposing" .)