Bloom likely to win card game (3-3,5)
I believe the answer is:
red-hot poker
'bloom' is the definition.
The answer and definition can be both plants as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'likely to win card game' is the wordplay.
'likely to win' becomes 'red-hot' (I've seen this before).
'card game' becomes 'poker' (poker is a kind of card game).
'redhot'+'poker'='RED-HOT POKER'
Can you help me to learn more?
(Other definitions for red-hot poker that I've seen before include "Garden plant" , "Flower (found in the grate?)" , "Flower (just out of the fire?)" .)