Extract personal info about father when hosting son (7)
I believe the answer is:
passage
'extract' is the definition.
(I have seen 'Literary extract' mean 'passage' so perhaps 'extract' could also mean 'passage')
'personal info about father when hosting son' is the wordplay.
'personal info' becomes 'age' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'about' is a charade indicator (letters next to each other).
'father' becomes 'pa' (pa can mean dad or father).
'when hosting' means one lot of letters goes inside another (the word welcomes or hosts inserted letters).
'son' becomes 'ss' (I've seen this in other clues).
'age' after 'pa' is 'paage'.
'paage' going around 'ss' is 'PASSAGE'.
Can you help me to learn more?
(Other definitions for passage that I've seen before include "Transit - part of book etc" , "Piece of text or music" , "Short section of text" , "Way through; part of text" , "Alley - corridor" .)