The most common and most likely answer to this crossword clue is the 6 letter word EQUITY
I've seen this crossword clue in The Guardian
E
Q
U
I
T
Y
More clues leading to the result EQUITY
- Share value knocking you back when about to retire?
- What actors make up in what’s only fair play
- Legal right — what a woman may fight for, not a man
- Association of actors depart during emergency externally
- Part of me quit yearning for union
- Right for the old to be upset over surrender
- First off, essential nurses resign from union
- Union left got in extremely easily
- Right sort of stock
- Value of shares in players’ organisation
Buddy explains!

The straight part
We know that "Union" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case union = equity.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 EQUITY mean?
EQUITY noun- Fairness, impartiality, or justice as determined in light of "natural law" or "natural right".
- Various related senses originating with the Court of Chancery in late Medieval England
- Various senses related to net value