Maybe sauciest luggage item (8)
I believe the answer is:
suitcase
'luggage item' is the definition.
'suitcase' can be an answer for 'item' (I have seen 'Item of luggage' mean 'suitcase' so perhaps 'item' could also mean 'suitcase'). I'm not sure about the 'luggage' bit.
'maybe sauciest' is the wordplay.
'maybe' is an anagram indicator.
'sauciest' anagrammed gives 'SUITCASE'.
Can you help me to learn more?
(Other definitions for suitcase that I've seen before include "Piece of luggage" , "Pack it to travel {8}" , "Valise" , "Item of luggage" , "A bit of baggage" .)