Discover and get rid of weeds perhaps (3,2)
I believe the answer is:
dig up
'discover' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for dig up that I've seen before include "Excavate - discover" , "Uncover (something hidden)" , "Disinter" , "Find" , "Unearth" .)