A blooming sign of approval (6,7)

'a blooming sign of approval' is the definition.
I know nothing about this answer so I can't tell whether this works.

'blooming sign of approval' is the wordplay.
I cannot really see how this works, but
'blooming' could be 'floral' (with flowers) and 'floral' is found within the answer.
'approval' could be 'tribute' (tribute is a kind of approval) and 'tribute' is found within the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?