Conveyance to turn and stop argument (11)
I believe the answer is:
wheelbarrow
'conveyance' is the definition.
(wheelbarrow is a kind of conveyance)
'turn and stop argument' is the wordplay.
'turn' becomes 'wheel' (I've seen this before).
'and' says to put letters next to each other.
'stop' becomes 'bar' (bar can mean to stop or prevent).
'argument' becomes 'row' (to row is to argue).
'wheel'+'bar'+'row'='WHEELBARROW'
'to' acts as a link.
(Other definitions for wheelbarrow that I've seen before include "gardening aid" , "Type of handcart" , "Garden cart" , "Small cart" , "Gardener's carrier" .)