THEME:   last letter of a phrase is changed from X to G   
GOOD ONES:     Like the answers to starred clues before they were edited for content?   X-RATED   
*Law against certain intra-family marriages?   OEDIPUS REG      
BTW:   Healthy greens   KALES [one would think a professional wordsmith would chose to distinguish between 
healthy and 
healthful]      
Ajar, poetically   OPE [in my experience OPE is a verb, not an adjective: "ope your limpid pools," not "the door is ope"]      
Curly-tailed canine   PUG [their tails are not curly but curled]         
RATING:    
 
Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun