The most common and most likely answer to this crossword clue is the 8 letter word RETAILER
R
E
T
A
I
L
E
R
More clues leading to the result RETAILER
- Tell Her Majesty to become a shopkeeper
- One complaining about front being removed from pet shop
- One complaining strongly about alien shopkeeper?
- Shopkeeper offering fashion again, we hear?
- Dealer's henchman preferring pound to note
- Merchant banker finally meeting online follower?
- He complains bitterly about film supplier
- Extreme Tory starts interrupting complainant, a dealer
- Shop hand, one working on attachment thanks to farmer’s wife?
- Shopkeeper about to make clothes for broadcast
Buddy explains!

The straight part
We know that "a dealer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a dealer = retailer.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does RETAILER mean?
RETAILER noun- A retail sales company or salesman.