The most common and most likely answer to this crossword clue is the 6 letter word PIEMAN
I've seen this crossword clue in The Guardian
P
I
E
M
A
N
More clues leading to the result PIEMAN
Buddy explains!
The straight part
We know that "encountered by Simon" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case encountered by simon = pieman.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 PIEMAN mean?
PIEMAN noun- A man who sells pies.