Bet on a chap not being a cleric (6)
I believe the answer is:
layman
'not being a cleric' is the definition.
I can't judge whether this defines the answer.
'bet on a chap' is the wordplay.
'bet' becomes 'lay' (lay bet is a type of bet in gambling).
'on' is a charade indicator (letters next to each other) (in a down clue, letters appear on others).
'a chap' becomes 'man' (chap can mean a man).
'lay'+'man'='LAYMAN'
Can you help me to learn more?
(Other definitions for layman that I've seen before include "member of the congregation" , "He's not clergy or military" , "Amateur" , "He's not a cleric" , "He's not ordained or professional" .)