The most common and most likely answer to this crossword clue is the 6 plus 3 letter word DOUBLE ACT
I've seen this crossword clue in The Daily Telegraph
D
O
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B
L
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A
C
T
More clues leading to the result DOUBLE ACT
- . Entertaining pair open country clubs, shrouded by uncertainty
- Uncertainty about field set by captain initially for entertaining pair
- Funny duo able to get heads in crowd tittering
- Eg Laurel and Hardy’s “dodo”
- Bill in close-fitting jacket for performance
- Abbott and Costello, perhaps — each initially wearing old jacket
- What has four legs and makes us laugh — dodo?
- Close-fitting clothing once worn by current entertaining couple
Buddy explains!
The straight part
We know that "performance" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case performance = double act.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.