Garden transporter will prohibit argument! (6)
I believe the answer is:
barrow
'garden transporter' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'will prohibit argument' is the wordplay.
'will' means one lot of letters go next to another (I've seen this in other clues).
'prohibit' becomes 'bar' (to bar is to ban or prohibit).
'argument' becomes 'row' (to row is to argue).
'bar' next to 'row' is 'BARROW'.
Can you help me to learn more?
(Other definitions for barrow that I've seen before include "Ancient burial mound" , "Cart; grave mound" , "Garden cart" , "Prehistoric burial ground or small cart with wheels" , "Cart used by street vendor" .)