Struggling to get over the line. Last four, all help appreciated.
22a. Use to hear them on sleepless nights (5) -h-e-
4d. This is my island in the sun's vicinity you hear the old song! (4) -k-e
7d. Should have No. 32 assembled by March 10th (4) -a-l
26d. Hitchcock plot took so much unravelling (4) r-p- (rope ?)