One commited in passing? (3)
I believe the answer is:
sin
'one commited' is the definition.
I can't tell whether this defines the answer.
'in passing?' is the wordplay.
'in' indicates the answer is hidden within the clue.
'SIN' is hidden in the letters of 'passing'.
Can you help me to learn more?
(Other definitions for sin that I've seen before include "Immoral action" , "Serious offence" , "Something wrong" , "'Transgression, mortal or venial (3)'" , "Misdeed" .)