Tense time yet to come? (6)
I believe the answer is:
future
This clue is a triple definition!
'tense' is the first definition.
(future is a kind of tense)
'time' is the second definition.
(future is a kind of time)
'yet to come?' is the third definition.
(I've seen this before)
(Other definitions for future that I've seen before include "Time yet to come" , "What is yet to pass" , "Outlook" , "Verb tense; to come" , "Beyond the present" .)