Lack a young woman (4)
I believe the answer is:
Here is my best explanation:
This clue is a double definition.
'lack' is the first definition.
('miss' can be a synonym of 'lack')
'a young woman' is the second definition.
('miss' can be a synonym of 'young woman')
(Other definitions for miss that I've seen before include "Suffer from the lack of", "Feel the loss of - schoolgirl", "Fail to see or hit", "Austria/Italy region", "Skip", "Overlook - misfire - young lady", "Girl or unmarried woman", "Feel the absence of", "Fail to reach" and "Single girl".)