
1) An outstanding achievement 2) Auction board game 3) Barbershop quartet 4) British game show 5) Control part of tour de force 6) Great work 7) Great work of art 8) ITV game show 9) Magnum opus 10) New book by Thomas Hoving 11) No ordinary creation 12) Painting by Roy Lichtenstein 13) Piece of work 
Found on 
https://www.crosswordclues.com/clue/masterpiece

1) Chefdoeuvre 2) Gem 3) Opus 4) Pearl 
Found on 
https://www.crosswordclues.com/clue/masterpiece

 Masterpiece (or chef d`œuvre) in modern use refers to a creation that has been given much critical praise, especially one that is considered the greatest work of a person`s career or to a work of outstanding creativity, skill, or workmanship. ==Origins== Originally, the term masterpiece referred to a piece of work produced by an apprentice or j.....
Found on 
http://en.wikipedia.org/wiki/Masterpiece
 [The Temptations song]
[The Temptations song]  `Masterpiece` is a 1973 soul single by American vocal group The Temptations. The song`s architect, Norman Whitfield, titled the song `Masterpiece` because he felt it was a perfect blending of strings, horns, rhythm players, voices, studio tricks, and sweetening elements. However, the word `masterpiece` does not appear...
Found on 
http://en.wikipedia.org/wiki/Masterpiece_(The_Temptations_song)
 [game]
[game]  Masterpiece is a board game by Parker Brothers, now a brand of Hasbro. Players participate in auctions for famous works of art. It was originally published in 1970 by Parker Brothers, and then published again in 1976 and 1996. The game is now out-of-print. In this game, players compete with other players to bid on potentially valuabl...
Found on 
http://en.wikipedia.org/wiki/Masterpiece_(game)
 [quartet]
[quartet]  Masterpiece is the barbershop quartet that won the International Quartet Championship for 2013 at the Barbershop Harmony Society`s annual international convention, in Toronto, Ontario. The quartet`s preliminary qualifying score of 88.5% was the second highest among 2013`s international competitors. The foursome placed third and fo...
Found on 
http://en.wikipedia.org/wiki/Masterpiece_(quartet)

• (n.) Anything done or made with extraordinary skill; a capital performance; a chef-d`oeuvre; a supreme achievement.
Found on 
http://thinkexist.com/dictionary/meaning/masterpiece/

Originally the piece of work executed by an artist or craftsman on completing his training and becoming a master within his guild. It is now applied to the most outstanding works...
Found on 
http://www.encyclo.co.uk/local/20688
 Mas'ter·piece`  noun
Mas'ter·piece`  noun  Anything done or made with extraordinary skill; a capital performance; a chef- d'œuvre; a supreme achievement. « The top and 
 masterpiece of art.» 
 South. « Dissimulation was his 
 masterpiece .» 
 Claredon. Found on 
http://www.encyclo.co.uk/webster/M/30

[
n] - the most outstanding work of a creative artist or craftsman 2. [n] - an outstanding achievement
Found on 
http://www.webdictionary.co.uk/definition.php?query=masterpiece

masterpiece 1. An outstanding achievement.  2. The most outstanding work of a creative artist or craftsman.  3. An exceptionally good piece of creative work; for example, a book, movie, or performance.
Found on 
http://www.wordinfo.info/words/index/info/view_unit/4069/
 chef-d`oeuvre noun
chef-d`oeuvre noun the most outstanding work of a creative artist or craftsman
Found on 
https://www.encyclo.co.uk/local/20974
  No exact match found.