Cryptic crossword clue
Appears with good sort of act attracting prolonged applause 11

The most common and most likely answer to this crossword clue is the 11 letter word SHOWSTOPPER

I've seen this crossword clue in The Daily Telegraph
S
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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 SHOWSTOPPER mean?

SHOWSTOPPER noun
  1. A performance or segment of a theatrical production that induces a positive audience reaction strong enough to pause the production.
  2. Any impediment that prevents all further progress; especially a software bug that must be fixed before any further development is possible.

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