Idleness at home? Legal proceeding follows! (8)
I believe the answer is:
inaction
'idleness' is the definition.
(thesaurus)
'home? legal proceeding follows' is the wordplay.
'home?' becomes 'in' ('he's home' can mean 'he's in').
'legal proceeding' becomes 'action' (action is a kind of legal proceeding**).
'follows' means one lot of letters go next to another.
'in'+'action'='INACTION'
'at' is the link.
(Other definitions for inaction that I've seen before include "Idleness - fighting" , "Passivity, doing nothing" , "lack of engagement" , "Rest" , "Lethargy -- not in CIA (anag)" .)