The most common and most likely answer to this crossword clue is the 7 letter word ODORANT
I've seen this crossword clue in The Daily Telegraph
O
D
O
R
A
N
T
Buddy explains!

The straight part
We know that "having a bouquet" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case having a bouquet = odorant.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 ODORANT mean?
ODORANT noun- Any substance that has a distinctive smell, especially one added to something (such as household gas) for safety purposes
- Having an odour/odor.