Minutiae (6)
I believe the answer is:
trivia
'minutiae' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for trivia that I've seen before include "Unimportant or valueless things" , "Unimportant things or details" , "Matters very little" , "Unimportant facts" , "Non-essential data" .)