THEME:   F substituted for initial letter of last word of a familiar phrase   
GOOD ONES:     Dude in the CIA?   UNDERCOVER FOP   
Trivial blunder?   MICKEY MOUSE FLUB   
Pancake cook in pinstripes?   YANKEE FLIPPER [Joe DiMaggio was the Yankee Clipper]   
It's a gas   NEON [don't know how many youngsters know that phrase or heard "Jumpin' Jack Flash, it's a gas, gas, gas"]   
Full deck Nero wasn't playing with?   LII [fifty-two cards in a deck, but this may be a bit anachronistic]      
BTW:   ETE and 
TOI are NG.      
Affectionate text   I LUV U [I still haven't been able to read "text" immediately as a phone message --- probably because I have never used the keyboard on my 5-yr-old cell phone]      
Finish as a tat   INK UP [Nor have I been able to read immediately "tat" as a tattoo rather than a knitting term]      
As of 9:20 AM EST my Time Warner service is on the fritz.           
RATING:    
 
  
 
Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun