The most common and most likely answer to this crossword clue is the 8 letter word LARGESSE
I've seen this crossword clue in The Guardian
L
A
R
G
E
S
S
E
More clues leading to the result LARGESSE
- Unopened beer and glass smashed for charity
- Leading character in Sussex and surrounding area showing generosity
- . Student Rag sees amazing generosity
- Generosity of spirit and less rage somehow needed
- Gifts bestowed in important letter read out
- Giving great yawns, tedious chore ends
- Superman’s motive, it’s said, is philanthropy
- GiftS, they say
- Hissing letter included in huge gifts given generously
- Gear redesigned by student leader featured in university handout
Buddy explains!

The straight part
We know that "Giving" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case giving = largesse.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 LARGESSE mean?
LARGESSE noun- Generosity in the giving of gifts or money.
- The gifts or money given in such a way.
- A benevolent demeanor.