Future is mine (8)
I believe the answer is:
prospect
I believe this is a double definition.
'future' is the first definition.
(I've seen this before)
'is mine' is the second definition.
(thesaurus)
(Other definitions for prospect that I've seen before include "Extensive landscape" , "Likely customer - search for gold" , "Survey the outlook" , "Look for valuable minerals" , "Possible customer" .)