This answer has 10 letters and comes to us from the daily newspaper the U.K. Guardian crossword puzzle.
Here is the correct answer for the "Disappointing conclusion in West End show, even in colour" crossword clue.
After searching the internet using the following sites, www.google.com, and www.ask.com here is what I found.
If this is the correct answer, please click on like button! - OLIVEGREEN
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