Get away from the house adjoining the mine (3,2)
I believe the answer is:
hop it
'get away' is the definition.
(I've seen this before)
'the house adjoining the mine' is the wordplay.
'the house' becomes 'ho' (abbreviation for house).
'adjoining' means one lot of letters go next to another.
'the mine' becomes 'pit' (down the pit).
'ho'+'pit'='HOP IT'
'from' is the link.
(Other definitions for hop it that I've seen before include "Leave" , "Run along now!" , "Push off!" , "split" , "Skedaddle!" .)