The most common and most likely answer to this crossword clue is the 7 letter word DANSEUR
I've seen this crossword clue in The Times
D
A
N
S
E
U
R
More clues leading to the result DANSEUR
- Doctor nursed a performer
- Ballet star has no regrets coming up short
- Ballerina’s partner regrets nothing when too short in lifting
- Performer died in front of a tipsy nurse
- Maybe Nureyev nursed a wound
- Fellow of 15 sure to look silly as balletic performer
- Nureyev perhaps has nothing to regret, not quite doing a backflip?
- Arty male performer excited 70% of Sun readers
- Performer in Paris, in street, twirling
- While with Ballets Russes Nijinsky nursed a wound
Buddy explains!

The straight part
We know that "performer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case performer = danseur.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.