Some year, that, where we live (5)
I believe the answer is:
earth
'where we live' is the definition.
(I've seen this before)
'some year that' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'EARTH' can be found hidden inside 'year that'.
(Other definitions for earth that I've seen before include "Connection between an electrical device and conductor" , "our present abode" , "Our favourite planet" , "Solid ground" , "See 12" .)