Become embedded in house (5)
I believe the answer is:
lodge
I believe this clue is a double definition.
'become embedded' is the first definition.
(I've seen this in another clue)
'house' is the second definition.
(I know that lodge is a type of house)
'in' acts as a link.
(Other definitions for lodge that I've seen before include "College porters' room" , "A beaver's or otter's lair (5)" , "Rat messing with this > animal home" , "See 2" , "Beaver's nest" .)