A gross I counted, sold (9)
I believe the answer is:
auctioned
'sold' is the definition.
(auctioning is a kind of selling)
'a gross i counted' is the wordplay.
'gross' is an anagram indicator.
'i'+'counted'='icounted'
'icounted' with letters rearranged gives 'uctioned'.
'a'+'uctioned'='AUCTIONED'
(Other definitions for auctioned that I've seen before include "Sold to the highest bidder" , "Disposed of lots" , "Hammered away" , "Idea count (anag.)" , "Dealt with lots" .)