Tin over there in ravine (6)
I believe the answer is:
canyon
'ravine' is the definition.
(canyon is a kind of ravine)
'tin over there' is the wordplay.
'tin' becomes 'can' (synonyms).
'over there' becomes 'yon' (archaic word meaning 'over there').
'can'+'yon'='CANYON'
'in' is the link.
(Other definitions for canyon that I've seen before include "Defile" , "Deep, steep-sided valley" , "'Deep ravine, gorge (6)'" , "A deep gorge with a river, may be Grand" , "grand spectacle in Arizona" .)