Cropped up in the flower garden? (5)
I believe the answer is:
arose
'cropped up' is the definition.
(I've seen this in another clue)
'flower garden?' is the wordplay.
'flower' becomes 'a' (I can't justify this - if you can you should believe this answer much more).
'garden?' becomes 'rose' (rose garden is a kind of garden).
'a'+'rose'='AROSE'
'in the' acts as a link.
Can you help me to learn more?
(Other definitions for arose that I've seen before include "Issued" , "Became apparent" , "Occurred; stood up" , "Got out of bed" , "Emerged from" .)