The most common and most likely answer to this crossword clue is the 7 letter word BOUQUET
I've seen this crossword clue in The Guardian
B
O
U
Q
U
E
T
Buddy explains!

The straight part
We know that "Fragrance" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fragrance = bouquet.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 BOUQUET mean?
BOUQUET noun- A bunch of cut flowers.
- The scent of a particular wine.
- The heart note of a perfume.
- A compliment or expression of praise.
- A bouquet of circles.
- The reserve of cards in the game of Flower Garden and variations.
- The ninth Lenormand card, sometimes called Flowers instead.