THEME:   last word of a familiar phrase has an appendage that ends with a double consonant and final -A   
GOOD ONES:  Summer known for kitchen supplies?   TEFLON DONNA ["Telfon Don" Gotti, criminal]   
Navel observation   INNIE [not nav
al]   
Running without moving   IDLING   
Pal of Picasso   AMIGO [I thought some artist I didn't know]   
Lead in the theater?   USHER   
Head lock   TRESS   
Giant star   OTT [baseball player, not heavenly orb]      
BTW:   
Cards, e.g.   
NLERS [not a real word, and no one has claimed the million bucks for finding it in the sports pages]      
Other, in Oaxaca   
OTRO [exactly,  but not in St. Louis, Mo.]         
RATING:    
 
 
Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun