The most common and most likely answer to this crossword clue is the 9 letter word SLIGHTING
I've seen this crossword clue in The Times
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More clues leading to the result SLIGHTING
Buddy explains!
The straight part
We know that "insulting" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case insulting = slighting.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SLIGHTING mean?
SLIGHTING verb- To treat as unimportant or not worthy of attention; to make light of.
- To give lesser weight or importance to.
- To treat with disdain or neglect, usually out of prejudice, hatred, or jealousy; to ignore disrespectfully.
- To act negligently or carelessly.
- (of a fortification) To render no longer defensible by full or partial demolition.
- To make even or level.
- To throw heedlessly.
- The act of giving a slight or snub.
- An act of ignoring or neglecting someone or something; more broadly neglect.
- The action of rejecting someone or something; rejection.
- The full or partial demolition of a fortification.
- In the manner of a slight; belittling, deprecative