Male depression son leaves for another day (8)
I believe the answer is:
tomorrow
'male depression son' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'for another day' is the wordplay.
'for' becomes 'to' (eg both can mean 'in the opinion of').
'another day' becomes 'morrow' (morrow is a kind of day. I am not sure about the 'another' bit.).
'to'+'morrow'='TOMORROW'
'leaves' acts as a link.
Can you help me to learn more?
(Other definitions for tomorrow that I've seen before include "The next day" , "when weekend begins?" , "It's another day" , "coming soon" , "They say it never comes" .)