Wild dog kept in a building overseas (5)
I believe the answer is:
dingo
'wild dog' is the definition.
(dingo is a kind of wild dog)
'in a building overseas' is the wordplay.
'in' indicates the answer is hidden within the clue.
'DINGO' is hidden in the letters of 'building overseas'.
'kept' is the link.
(Other definitions for dingo that I've seen before include "One running wild in Australia" , "Wild dog of Oz" , "Aus. wild dog" , "Wild creature" , "Wild animal" .)