6 Across - Set free, but abused in return (7) ?e?????
4 Down - An illumination for the landing (9) ?l???????
18 Down - I am crazy about a girl (4) ??i?
16 Down - Boat causes water to rise (5) ???o?
19 Across - He gets red if a stranger addresses him (3) ?a?
6 (set free) deliver reversed is reviled (abused)
18 (crazy)mad with I inside
16 (boat)sloop reversed( to rise) pools( water)
19 alf would be called by his proper name, Alf(red) by a stranger.