The most common and most likely answer to this crossword clue is the 6 letter word CHICHI
I've seen this crossword clue in The Guardian
C
H
I
C
H
I
More clues leading to the result CHICHI
- Pretentiousness overseas character repeatedly displayed
- Fashionable greeting is pretentious
- Greek character appears twice as fussy
- Switzerland and Italy twice affected
- Pretentious indications of Platonic love?
- Affected stylish greeting
- Trendy, not quite trendy, or affectedly trendy
- The Windy City - repeatedly arty and pretentious
Buddy explains!

The straight part
We know that "affected" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case affected = chichi.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 CHICHI mean?
CHICHI adjective- Affectedly trendy; chic and stylish
- (Latin America, chiefly in the plural) A woman's breast.