Saucy thing, part of morning routine (8)
I believe the answer is:
dressing
'saucy thing' is the definition.
(I've seen this before)
'part of morning routine' is the wordplay.
I cannot really understand how this works, but
'part' could be 'si' (si is a kind of part) and 'si' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for dressing that I've seen before include "Covering for wound; sauce for salad" , "Sauce - protection for wound" , "Compress" , "the early-morning routine" , "Sauce for salad etc" .)