The most common and most likely answer to this crossword clue is the 6 letter word SINGER
I've seen this crossword clue in The Times
S
I
N
G
E
R
More clues leading to the result SINGER
- Might one burn a little rat
- Might this performer have you in stitches?
- Entertainer, one who got things stitched up!
- Performer among celebrities in Germany
- Wrong number set back this performer?
- Music producer, a scorcher?
- A Rat? Bob Geldof could be described as one!
- Reprobate changing second name to George
- Operas in German too much for vocalist
- See 24
Buddy explains!

The straight part
We know that "this performer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case this performer = singer.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 SINGER mean?
SINGER noun- A person who sings, often professionally.
- (square dance) dance figure with a fixed structure, sung by a caller, or a piece of music with that structure.
- A person who, or device which, singes.
- A machine for singeing cloth.