Auctions (5)
I believe the answer is:
sales
'auctions' is the definition.
(auction is a type of sale)
This is all the clue.
(Other definitions for sales that I've seen before include "Income received for goods and services over a given period" , "a feature of Boxing Day?" , "Periods when shops sell goods at discounted prices, bargain times" , "Opportunities to sell" , "Cheap offer periods" .)