Bloomer makes card game proceed tediously (10)
I believe the answer is:
snapdragon
'bloomer' is the definition.
(I know that snapdragon is a type of bloomer)
'card game proceed tediously' is the wordplay.
'card game' becomes 'snap' (simple card game).
'proceed tediously' becomes 'dragon' (I can't explain this - if you can you should give a lot more credence to this answer).
'snap'+'dragon'='SNAPDRAGON'
'makes' is the link.
(Other definitions for snapdragon that I've seen before include "Perhaps Christmas entertainment" , "Garden plant" , "The blossom" , "flower" , "One blooming" .)