Possible Title: 
TwelfthsTheme: Phrases representing a twelfth of a larger collection
Good Ones:Comb user   BEE [honeycomb]
Feathery layer   HEN
By the Way:Young Vito Corleone portrayer…   DENIRO [but he was a mature adult; there was a boy who played young Vito, but I can’t recall his name]
No longer in the oven   DONE  [it may still be in the oven when the cook says, “It’s done.”]
Momentous   EVENTFUL [saw yesterday’s Yankee game and it was eventful but certainly not momentous]
Some Nits to Pick:ORDRE
RATING:   

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