The most common and most likely answer to this crossword clue is the 8 letter word BACKCHAT
I've seen this crossword clue in Financial Times
B
A
C
K
C
H
A
T
More clues leading to the result BACKCHAT
- Cheeky response from rear about headgear
- Home again by tea time bringing sauce
- Teasing repartee from stern about sou’wester, perhaps
- Sag? Such impertinence!
- Encourage teatime banter
- Nerve gas?
- Soccer player gets the bird for impudent retorts
- Effrontery in support given to heartless deception
- Support talk even if it’s rude response
- Cheeky talk by footballer before tea time
Buddy explains!
The straight part
We know that "Teasing repartee" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case teasing repartee = backchat.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 BACKCHAT mean?
BACKCHAT noun- Cheeky or impertinent responses, especially to criticism.
- To respond in a disputative, often sarcastic manner.