Crossword puzzle clue "fix once and for all"

Fix once and for all?

Once, once more and yet once more

Fix the punctuation once more

Correspondence course for fix-it types, once

All-purpose fix-it roll

IT takes all sorts of people to fix them

"All the world's a stage, and all the men and women ___ players"

Danish astronomer who was exhumed twice, once to examine the causes of death and once to identify the material of his artificial nose