2D:Knot unravels after klap (4) T?N?
13D: Cool claim to be quiet student, without elaborate reason (10) ?M?E?S????
23D: Excite prime suspect at last (4) ?E?D...
need help following clues:
5A House cracked externally -- something of a comedown (6) ?A?H?S
11D Have some weight and box, disposing of unknown (4) ?E?L...