Far from important (7)
I believe the answer is:
trivial
'far from important' is the definition.
(I know that trivial is the opposite attribute of important)
This is the entire clue.
(Other definitions for trivial that I've seen before include "Petty, piffling" , "Footling" , "lacking weight" , "Unimportant, minor" , "Of little consequence" .)