The most common and most likely answer to this crossword clue is the 6 letter word LEGACY
I've seen this crossword clue in The Times
L
E
G
A
C
Y
More clues leading to the result LEGACY
- Heritage prison set back within Londonderry's walls
- One’s left, for example, in flimsy clothing
- Empty country next to field covering good part of estate
- What’s left on account: variable amount
- Frilly corsets for one hand-me-down
- What’s left for instance in puddled clay
- Fine to pocket, say, the amount left
- Heirloom of frilly clothing for example
- What’s left say in delicate environment
- Support a heartless crony to get bequest
Buddy explains!

The straight part
We know that "What’s left" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case what’s left = legacy.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 LEGACY mean?
LEGACY noun- Money or property bequeathed to someone in a will.
- Something inherited from a predecessor or the past.
- The descendant of an alumnus.
- Left over from the past; no longer current.