Flowers came up with spades (5)
I believe the answer is:
roses
'flowers' is the definition.
(I've seen this before)
'came up with spades' is the wordplay.
'came up' becomes 'rose' (I've seen this before).
'with' is a charade indicator (letters next to each other).
'spades' becomes 's' (abbreviation in card games).
'rose'+'s'='ROSES'
(Other definitions for roses that I've seen before include "northern counties, symbolically" , "Blooms" , "Red, white war symbols" , "Flowers of 15th century war" , "Bloomers" .)