The most common and most likely answer to this crossword clue is the 5 plus 5 letter word ROYAL FLUSH
I've seen this crossword clue in Financial Times
R
O
Y
A
L
F
L
U
S
H
More clues leading to the result ROYAL FLUSH
- Two boys look embarrassed to get a big hand
- Hand over all evidence of monarch leaving throne?
- Best hand in the throne room?
- Generous hand bringing colour to Her Majesty’s cheeks?
- Prince Andrew, say, visibly ashamed: it’s a big deal
- Good hand for throne action?
- A good hand for prince getting generous
- Hand, one dispensing with the king’s business?
- Magnificent having lots of money in hand
- Boy to betray embarrassment, holding another boy’s hand
Buddy explains!
The straight part
We know that "hand" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case hand = royal flush.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.