1: Not blunt instrument - it has point on front (5)
3: And give a little toot! (3)
5: Part of stair is erect (5)
8: Smuggler participating in arms race? (9)
10: Crook skimmed cash register? (3)
11: Publication for children (5)
12: Fathers start to applaud, in afterthought (3)
13: We turned up with endless Irish pitchers (5)