THEME:   AD added to common phrases   
GOOD ONES:     Court term {& theme}    AD IN [tennis court score]   
Spy industry?   SHADOW BUSINESS [show business]   
Monk's "The piano ain't got no wrong notes," e.g.   JAZZ ADAGE [Jazz Age]   
Took sides?   ATE [as in a side order of bacon]   
Waiter at O'Hare   TAXI [not at a restaurant, but could be]      
BTW:   Lowlife, slangily   CREEPO [is it "el creepo" as in "el cheapo" --- anyway, I'm not buying it without the "el," making me "el groucho"]      
Get ripped   TONE UP [hardly alike: "tone up" means to improve one's musculature; "get ripped" means to build massive muscles]         
RATING:    
 
  
 
Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun