Raced around picking up rubbish getting dumped (8)
I believe the answer is:
scrapped
'dumped' is the definition.
(I've seen this before)
'raced around picking up rubbish' is the wordplay.
'raced around' becomes 'sped' ('speed' can be a synonym of 'race'. I am not sure about the 'around' bit.).
'picking up' means one lot of letters goes inside another.
'rubbish' becomes 'crap'.
'sped' enclosing 'crap' is 'SCRAPPED'.
'getting' acts as a link.
Can you help me to learn more?
(Other definitions for scrapped that I've seen before include "Junked or discarded" , "Fought - ceased to use" , "Put up fight" , "Disposed of, article or idea, say" , "did battle" .)