The most common and most likely answer to this crossword clue is the 7 letter word PANDORA
I've seen this crossword clue in The Daily Telegraph
P
A
N
D
O
R
A
More clues leading to the result PANDORA
- First woman in shipping firm starts to resent advice
- Box female soldiers, with police car outside
- Shipping line registered a toxic container carrier
- Greek First Lady‘s assistant straddling two gates
- She opened a box of letters from Dad?
- First woman to seek gold with another
- Criticise girl for releasing the evils of the world?
- She opened the box containing one or two of Pa’s pieces
- First Lady in Pennsylvania, North Dakota, Oregon area
- Criticise girl who released much evil
Buddy explains!

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 PANDORA mean?
PANDORA noun- Any fish of the genus Pagellus.