The most common and most likely answer to this crossword clue is the 8 letter word CONSUMER
C
O
N
S
U
M
E
R
More clues leading to the result CONSUMER
- Customer’s urn comes adrift
- Someone eating ice-cream right to swallow everything
- One taking in study connected with old Babylonian region
- Client fools river bird heading west
- Boris, say, reckoning Brenda is one who’ll buy
- Client in hoax reckoning to meet the Queen
- It adds up to this: the Queen is married to a Tory who makes use of his power
- Total show of hesitation by Tory user
- End-user to study problem with hesitation
Buddy explains!

The straight part
We know that "End-user" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case end-user = consumer.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 CONSUMER mean?
CONSUMER noun- One who, or that which, consumes.
- Someone who trades money for goods or services as an individual.
- (by extension) The consumer base of a product, service or business.
- An organism (heterotroph) that uses other organisms for food in order to gain energy.