Insignificant or petty (8)
I believe the answer is:
trifling
This clue is a double definition.
'insignificant' is the first definition.
(I've seen this in another clue)
'petty' is the second definition.
(I've seen this before)
(Other definitions for trifling that I've seen before include "Unimportant, trivial" , "Inconsequential" , "Frivolous" , "Of little importance" , "insignificant" .)