Dog straying half a mile, about, from home (5)
I believe the answer is:
lodge
'home' is the definition.
(lodge is a kind of home)
'dog straying half a mile about' is the wordplay.
'straying' is an anagram indicator.
'half a' indicates taking half.
'about' means one lot of letters goes inside another.
'mile' halved is 'le'.
'dog' is an anagram of 'odg'.
'odg' put into 'le' is 'LODGE'.
'from' is the link.
(Other definitions for lodge that I've seen before include "residence" , "Deposit the house at the estate entrance?" , "Stay temporarily, with bed and board" , "Rat messing with this > animal home" , "Small gatehouse" .)