THEME:   phrases contains ROLE spelled backward   
GOOD ONES:     Psychodrama technique {& theme}   ROLE REVERSAL      
BTW:   Two clues exhibiting a tin ear:      
"Oh, I see"   AH SO [I might accept "I see" without the "Oh."  However, "Ah, so" is used in jest suggesting "now I get it."  "Oh, I see" suggests a serious recent understanding.]   
Tick off   INCENSE ["Tick off" suggests to annoy, even up to anger.  "Incense" is used to define intense anger --- the other end of the spectrum.]   
"Egad!"   ACK [perhaps on some internet word list, but ACK has nothing to do with 
Egad --- Egads!]         
RATING:     

Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun