Narrowly avoided accident not far from unmarried woman (4,4)
I believe the answer is:
near miss
'narrowly avoided accident' is the definition.
I can't tell whether this defines the answer.
'not far from unmarried woman' is the wordplay.
'not far from' becomes 'near' (I've seen this before).
'unmarried woman' becomes 'miss' (as opposed to Mrs).
'near'+'miss'='NEAR MISS'
Can you help me to learn more?
(Other definitions for near miss that I've seen before include "Close to an accident" , "Just off the target (4,4)" , "girl next door" , "Close call" , "Not a direct hit, but very close" .)