piece of work

Noun

• a product produced or accomplished through the effort or activity or agency of a person or thing
  • it is not regarded as one of his more memorable works
    
  • the symphony was hailed as an ingenious work
    
  • he was indebted to the pioneering work of John Dewey
    
  • the work of an active imagination
    
  • erosion is the work of wind or water over time