The most common and most likely answer to this crossword clue is the 7 plus 3 letter word MELTING POT
I've seen this crossword clue in Financial Times
M
E
L
T
I
N
G
P
O
T
More clues leading to the result MELTING POT
- Crucible girl can put on good snooker shot
- Where diverse cultures mix, starting to run corporation
- Gent involved with plot, I’m in a situation of change and uncertainty
- State of dissolution in which things get very hot
- In general mix-up, English officer breaks valuable Chinese vase
- Impotent heartless goal engineered in place characterised by racial mixing
- Opt for crucible?
Buddy explains!
The straight part
We know that "situation of change and uncertainty" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case situation of change and uncertainty = melting pot.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.