One jumping about, helping with the loading? (6)
I believe the answer is:
hopper
'loading?' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'one jumping about helping with' is the wordplay.
'one jumping' becomes 'hop' (hop is a kind of jumping).
'about' says the letters should be written backwards.
'helping with' becomes 'rep' (I can't justify this - if you can you should believe this answer much more).
'rep' back-to-front is 'per'.
'hop'+'per'='HOPPER'
'the' is the link.
Can you help me to learn more?
(Other definitions for hopper that I've seen before include "Container carrying seed for sowing" , "Large funnel-shaped receptacle" , "What brings grist to the mill?" , "Funnel-shaped receptacle leading to a container below" , "agricultural machine?" .)