The most common and most likely answer to this crossword clue is the 8 letter word TIRAMISU
I've seen this crossword clue in Financial Times
T
I
R
A
M
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U
More clues leading to the result TIRAMISU
- Dish, one on board streetcar, is heading for university
- Note stuff happens at university, for which damp sponge is needed
- American and I ruin it, upside-down dessert
- Rum, is it? A tipsy dessert!
- … leaving spiritualism to go off for some pudding
- Dessert from flipping United States — I ruin it
- Sweet I stuff into ill-fitting suit
- Sweet air I must circulate
- In fact, IRA misunderstood final course
- Italian speciality suit tailored to go over – essentially – big butt
Buddy explains!

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 TIRAMISU mean?
TIRAMISU noun- An Italian semifreddo dessert, originally from Veneto, made from ladyfinger biscuits, cocoa, mascarpone cheese, Marsala wine, eggs (or sometimes cream), sugar and espresso coffee