The most common and most likely answer to this crossword clue is the 7 letter word SAUCIER
I've seen this crossword clue in The Guardian
S
A
U
C
I
E
R
Buddy explains!

The straight part
We know that "showing less respect" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case showing less respect = saucier.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 SAUCIER mean?
SAUCIER adjective- Similar to sauce; having the consistency or texture of sauce.
- Impertinent or disrespectful, often in a manner that is regarded as entertaining or amusing; smart.
- Impudently bold; pert.
- Sharp; pungent; piquant.
- Mildly erotic.
- In a large professional kitchen, a cook responsible for preparing sauces and for sauteing foods on demand.
- Ellipsis of saucier pan (a chef's pan)
- Sauce pan (a pan used to cook up a sauce)
- Sauce boat (a pitcher, dish, or, bowl, used to serve sauce)