Just the sort of hood for a youth? (3)
I believe the answer is:
boy
'a youth?' is the definition.
(male youth)
'just the sort of hood' is the wordplay.
I cannot really see how this works, but
'of' could be 'o' and 'o' is located in the answer.
The remaining letters 'by' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'for' is the link.
Can you help me to learn more?
(Other definitions for boy that I've seen before include "Young man" , "Son" , "Young male" , "Male child" , "Youthful male" .)