Argue about receiving advance payment as collateral (9)
I believe the answer is:
guarantee
'collateral' is the definition.
(guarantee is a kind of collateral)
'argue about receiving advance payment' is the wordplay.
'about' indicates an anagram.
'receiving' is an insertion indicator.
'advance payment' becomes 'ante' (I've seen this before).
'argue' with letters rearranged gives 'guare'.
'guare' going around 'ante' is 'GUARANTEE'.
'as' is the link.
(Other definitions for guarantee that I've seen before include "Promising" , "Assurance, warranty" , "Undertake" , "Written assurance, pledge" , "Warranty, pledge" .)