The most common and most likely answer to this crossword clue is the 8 letter word NEUROSIS
I've seen this crossword clue in The Guardian
N
E
U
R
O
S
I
S
More clues leading to the result NEUROSIS
- Obsession, not initially serious, developed
- Coins with wrong edging recalled — disorder results
- National currency is creating emotional disorder
- New coins, one’s obsession
- Name serious disturbance
- Poles accepting currency’s current instability
- Obsessional state that could make us nosier
- New currency is creating anxiety
- European euro’s issued restricting instability
- Terribly serious following new obsession
Buddy explains!

The straight part
We know that "obsession" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case obsession = neurosis.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 NEUROSIS mean?
NEUROSIS noun- A mental disorder, less severe than psychosis, marked by anxiety or fear which differ from normal measures by their intensity, which disorder results from a failure to compromise or properly adjust during the developmental stages of life, between normal human instinctual impulses and the demands of human society.