The most common and most likely answer to this crossword clue is the 9 letter word NEFERTITI
I've seen this crossword clue in The Times
N
E
F
E
R
T
I
T
I
More clues leading to the result NEFERTITI
- Regularly uncertain about dodgy refit for African Queen
- Female welcomed by entire cast, then it backfires for the Egyptian queen
- Queen once has European hat back to front in part of UK
- “Flipping hit it ref!” English Queen gulped
- Queen’s new titfer manufactured in E1
- Fine sculpture featuring Queen with bird; she has a magnificent bust
- Unusually trite, fine Egyptian queen
- First lieutenant drops sultan for Pharaoh queen
- Queen playing free, in/around Bristol
- Egyptian queen jogging in, fitter having run around Egypt’s capital
Buddy explains!

The straight part
We know that "Egyptian queen" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case egyptian queen = nefertiti.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.