The most common and most likely answer to this crossword clue is the 9 letter word BILATERAL
I've seen this crossword clue in The Daily Telegraph
B
I
L
A
T
E
R
A
L
More clues leading to the result BILATERAL
- In political draft, article time after time referring to two parties
- Blair mobilised to go round overdue, involving both sides
- Dined with artist, bill’s covered for both parties
- Bishop, one subsequently gangster — having two sides!
- A rate adjustment in account involving two sides
- Two act together at liberal meeting
- Liberal reforms blocked by a Tory originally affecting both parties
- Reciprocal statement admitting a bit of trickery with baseball stat
- Mistakenly tear a bill with two sides
Buddy explains!
The straight part
We know that "affecting both parties" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case affecting both parties = bilateral.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 BILATERAL mean?
BILATERAL noun- A meeting between two people or groups.
- Having two sides.
- Involving both sides equally.
- (of an agreement) Binding on both of the two parties involved.
- Having bilateral symmetry.
- Involving descent or ascent regardless of sex and side of the family.