14 down. Repulse.
?I???N
Sicken is generally given here as answer. But DISOWN also fits and make more sense????
19across is the bugbear.
Clue is KNIGHT.
Answer is severally given here as KNAVE....which is surely it's opposite.
Knave fits if SICKEN is answer to first clue.
If not the letters will be
O?A?E