The most common and most likely answer to this crossword clue is the 11 letter word DECORATIONS
I've seen this crossword clue in The Guardian
D
E
C
O
R
A
T
I
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N
S
More clues leading to the result DECORATIONS
Buddy explains!

The straight part
We know that "baubles and tinsel?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case baubles and tinsel? = decorations.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does DECORATIONS mean?
DECORATIONS noun- The act of adorning, embellishing, or honoring; ornamentation.
- That which adorns, enriches, or beautifies; something added by way of embellishment; ornament.
- Specifically, any mark of honor to be worn upon the person, as a medal, cross, or ribbon of an order of knighthood, bestowed for services in war, great achievements in literature, art, etc.
- The use of exotic sugars as decoys to distract the immune system of a host