I have answers to both but do not know extra letters from wordplay.
14. Have to live with member of human race (4) Have is the def and begins with BE.
16. Humble home of football manager? (5) Humble is the def and answer is A???E.
For the endgame, I have the verse but no idea how to apply it to the grid. I see the brave man in the grid but don't know how to replace it. Cannot see others in the grid yet.
Since there are 16 extra letters, 4 words of 4 answer length are affected?