1d possible singing- and not on key- your last song as you go?(7,3)?i?n???,???
18a why you may exclaim to high heaven, charity begins at the homeless?(3,3,4,2,3)???,t??,?o?e,of,?o?
6d clues not on, but thats how one begins(5,3)?e?d?,off
12a no rest without end, somehow, if sleeping partners do it(5)???r?