The most common and most likely answer to this crossword clue is the 8 letter word PARLANCE
I've seen this crossword clue in The Daily Telegraph
P
A
R
L
A
N
C
E
More clues leading to the result PARLANCE
- Cut short, and cut open, in a manner of speaking
- Normal look lacking gravity in a manner of speaking
- Average weapon, in a manner of speaking
- Criminal charge brought about by fellow’s manner of speaking
- Tongue of Henry VIII’s wife cut by weapon
- Talk of cut after backing strike
- Standard cut in theatre, in a manner of speaking
- Standard cavalry weapon in a manner of speaking
- Standard weapon in a manner of speaking
- Standard leader’s abandoned when following the French language
Buddy explains!

The straight part
We know that "a manner of speaking" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a manner of speaking = parlance.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 PARLANCE mean?
PARLANCE noun- A certain way of speaking, of using words, especially when it comes to those with a particular job or interest.
- Speech, discussion or debate.