Hi starting another xword brain is frazzled so need lots of help
1a makes a speech (5) no letters
4a tyrannizes, rides roughshod (5,2) ????? ?t
9a remove the smell from (9) no letters
11a a procedure regularly followed (6) no letters
12a a gigantic beast or thing (8) ?????o?h
13a vitamin also known as nicotinic acid (6) no letters