Necessary Ending 
Teen sensation? ANGST [though it’s not only teenage]
What a recent ex may need? TLC [ex = X]
Saturn drivers? ETS [they may drive on the planet]
Some traffic monitors NARCS [not car traffic]
Bright side? YANG
Theme: -ary added to a common phrase
Office employee to avoid? DEADLYSECRETARY
Shuttle evangelist? SPACEMISSIONARY
When did English get
AGITA?
RATING:
Three grins = Excellent: Loved it; Two grins = Good: Enjoyed it; One grin = Satisfactory: A bit bland for my taste; One teardrop = Unsatisfying: No fun
