Putting on clothes - what sauce! (8)
I believe the answer is:
dressing
I believe this is a double definition.
'putting on clothes' is the first definition.
(I've seen this before)
'sauce' is the second definition.
(I know that dressing is a type of sauce)
'what' is the link.
(Other definitions for dressing that I've seen before include "Condiment" , "bedroom procedure?" , "the early-morning routine" , "Sauce - alignment - bandage" , "Bandage, plaster" .)