10a "It will burn you if you're not careful child," you say (3) - S?N
I think it must be 'Son' or 'Sin', but which and why?
24a Got engaged a long time ago (8,4,5) - P?I?H??? O?E? T?O?H
I think one or more letters may be wrong here.
30a Say you'll see? (7) - OBSERVE
Why 'Say'?
23d Pressing on with the removal of the upstairs furniture (7,4) - ???R?N? DOWN
The 2nd letter of this is the 7th letter of 24a