Anagrams of: OVERPOSTING

• excellent

• (British informal) very chic

• relating to or interested in sports

• given to merry frolicking

• look down on

• be shown or be found to be

• establish the validity of something, as by an example, explanation or experiment

• provide evidence for

• prove formally; demonstrate by a mathematical, formal proof

• put to the test, as for its quality, or give experimental use to

• increase in volume

• cause to puff up with a leaven

• take a trial impression of

• obtain probate of

• An excessive amount of spin applied to a projectile such that its nose does not turn down at the summit of the trajectory.

• To spin too much or too far.

• To leave a tip that is too large.

• a high-ranking university administrator

• a stipulated condition