Containing a load of rubbish, let's ignore it (4)
I believe the answer is:
skip
'it' is the definition.
The definition suggests a singular noun which matches the answer.
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for skip that I've seen before include "Jump; builder's container" , "rubbish to go in it" , "Hop, omit" , "Hop, leap" , "Leap - omit" .)