Finally gets drink at retailer's event (4)
I believe the answer is:
sale
'retailer's event' is the definition.
'sale' can be an answer for 'event' (promotional event). I am unsure of the 'retailer's' bit.
'finally gets drink' is the wordplay.
'finally' indicates one should take the final letters.
'drink' becomes 'ale' (type of beer).
The last letter of 'gets' is 's'.
's'+'ale'='SALE'
'at' is the link.
Can you help me to learn more?
(Other definitions for sale that I've seen before include "Auction; Cheshire town" , "Exchange of goods for fixed amount" , "Cut-price offer" , "Disposal of shop's stock at reduced prices" , "Retail event - town in Greater Manchester" .)