Turn to stop argument in conveyance (11)
I believe the answer is:
wheelbarrow
'conveyance' is the definition.
(wheelbarrow is a kind of conveyance)
'turn to stop argument' is the wordplay.
'turn' becomes 'wheel' (I've seen this before).
'to stop' becomes 'bar' (bar can mean to stop or prevent).
'argument' becomes 'row' (to row is to argue).
'wheel'+'bar'+'row'='WHEELBARROW'
'in' is the link.
(Other definitions for wheelbarrow that I've seen before include "Gardening equipment" , "Garden cart" , "Gardener's carrier" , "Type of handcart" , "gardening aid" .)