I'm completely stuck - I must have mistakes because nothing sensible fits:
13d Try for a prize that's suitable with books (7)
I have ?A?PETS
27a Model's glib talk before midday (7) I have
38a ?E??A Emergency committee's snake
Any help please
Completed at last - made an early mistake of thinking that the "distinctive feature" was words that could be spelt differently, and went completely off on the wrong track!!! Apart from THAT all the clues were very straightforward!
My grid is complete apart from 20d - I can't find anything to fit which has the "distinctive" feature".
I have Athos for the musketeer - where do "breeches" fit in?
And where do the "treats" come into 19d?
Thanks for any explanations