The most common and most likely answer to this crossword clue is the 14 letter word GENTRIFICATION
I've seen this crossword clue in Independent
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More clues leading to the result GENTRIFICATION
Buddy explains!
The straight part
We know that "change – such as this" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case change – such as this = gentrification.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 GENTRIFICATION mean?
GENTRIFICATION noun- (urban studies) The renewal and rebuilding that accompanies the influx of middle class or affluent people into deteriorating areas and often displaces earlier, usually poorer, residents; any example of such a process.