The most common and most likely answer to this crossword clue is the 6 letter word LAYMAN
I've seen this crossword clue in Financial Times
L
A
Y
M
A
N
More clues leading to the result LAYMAN
- Produce chap, parishioner who lacks expert knowhow
- Bet on chap not being a cleric
- Outsider? Worker put on bet
- Amateur drama scores uncovered
- Amateur display manager has taken to heart
- Amateur songster?
- Put down crew as non-professional
- Amateur initially learnt from Al Qaeda chief
- Ordinary person when put down?
Buddy explains!

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 LAYMAN mean?
LAYMAN noun- Layperson, someone who is not an ordained cleric or member of the clergy.
- (by extension) Someone who is not a professional in a given field.
- A common person.
- A person who is untrained or lacks knowledge of a subject.
- A generally ignorant person.
- Lay-sister or lay-brother, person received into a convent of monks, following the vows, but not being member of the order.