Our tea ordered with nice salesperson (10)
I believe the answer is:
auctioneer
'salesperson' is the definition.
(I know that auctioneer is a type of salesperson)
'our tea ordered with nice' is the wordplay.
'ordered with' indicates an anagram.
'our'+'tea'='ourtea'
'ourtea' anagrammed with 'nice' can make 'AUCTIONEER'.
(Other definitions for auctioneer that I've seen before include "one that has lots to offer" , "One inviting bids for lots" , "One selling lots" .)