An outing that leads to a fall? (4)
I believe the answer is:
trip
This clue might be a double definition.
'an outing that leads' is the first definition.
'trip' can be an answer for 'an outing' (I've seen this in another clue). I am not sure about the remainder of the definition.
'to a fall?' is the second definition.
(as in tripping over)
Can you help me to learn more?
(Other definitions for trip that I've seen before include "Stumble - excursion" , "Pleasure excursion" , "Run with light steps" , "... the light fantastic to dance" , "Excursion (while on drugs?)" .)