Has he the knowledge? (3)
I believe the answer is:
ken
This clue might be a double definition.
'has he' is the first definition.
'Ken' can be an answer for 'he'. I am not certain of the 'has' bit.
'the knowledge?' is the second definition.
(ken is a kind of knowledge)
Can you help me to learn more?
(Other definitions for ken that I've seen before include "Identify; -- Livingstone" , "Awareness" , "Notice" , "Understanding - boy's name" , "Know; man's name" .)