Tradition at home (7)
I believe the answer is:
habitat
'home' is the definition.
(I know that home can be written as habitat)
'tradition at' is the wordplay.
'tradition' becomes 'habit' (habit is a kind of tradition).
'habit'+'at'='HABITAT'
(Other definitions for habitat that I've seen before include "Natural home and surroundings" , "Natural home of wildlife" , "place haunted" , "One's normal environment" , "Living environment" .)