Cryptic crossword clue
Behind curtain, nasty yob nabs red flag? No flipping wonder! 7,7,2,7

The most common and most likely answer to this crossword clue is the 7 plus 7 plus 2 plus 7 letter word HANGING GARDENS OF BABYLON

I've seen this crossword clue in The Times
H
A
N
G
I
N
G
G
A
R
D
E
N
S
O
F
B
A
B
Y
L
O
N

Buddy explains!

The straight part
We know that "wonder" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wonder = hanging gardens of babylon.
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.

Latest crossword clues with full explanations