Insult hardly worth mentioning (6)
I believe the answer is:
slight
'insult' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for slight that I've seen before include "Redeemer" , "Insubstantial; insult" , "Not strongly built" , "Minor - insult" , "Minor - affront" .)