Louis Quinze style, missing nothing on way of working leather (7)
I believe the answer is:
morocco
'leather' is the definition.
(morocco is a kind of leather)
I don't understand the rest of the clue.
(Other definitions for morocco that I've seen before include "Country in North Africa" , "Country of fine leather" , "N. African country" , "in which literature may be bound to sell" , "Fine soft leather from goatskin" .)