Crossword Puzzle Precisely accurate

Clue: Precisely accurate

To be more accurate (THATIS with 6 letters)
Entirely accurate (ONTARGET with 8 letters)
Extremely accurate (DEADON with 6 letters)
Accurate to the nth degree (EXACT with 5 letters)
To ___ (precisely) (ATEE with 4 letters)
Dead accurate (UNERRING with 8 letters)
Accurate: Abbr. (CORR with 4 letters)
The length of a meter is based precisely on the amount of light emitted from this (KRYPTONISOTOPE with 14 letters)
Get precisely right (NAIL with 4 letters)
Precisely (with "to") (ATEE with 4 letters)