Trivial or petty (8)
I believe the answer is:
piffling
I believe this clue is a double definition.
'trivial' is the first definition.
(I've seen this before)
'petty' is the second definition.
(thesaurus)
'or' acts as a link.
(Other definitions for piffling that I've seen before include "Trivially tiny" , "Nugatory" , "Of no importance at all" , "Mickey Mouse" , "Minor" .)