Cryptic crossword clue
Seller of car accessories is without hesitation a scheming sort 7-6

The most common and most likely answer to this crossword clue is the 14 letter word WHEELER-DEALER

I've seen this crossword clue in The Times
W
H
E
E
L
E
R
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D
E
A
L
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R

Buddy explains!

The straight part
We know that "scheming sort" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case scheming sort = wheeler-dealer.
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 WHEELER-DEALER mean?

WHEELER-DEALER noun
  1. A shrewd political or commercial schemer, especially one who is unscrupulous; a hustler; a shady operator.

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