Any help with these 3 clues would be appreciated. Thanks.
1 across- Like a failing old tavern,stuck with rum nosh,rotten(12)C??T???????K
19 across- Ebbing river abroad cracks stern badly,soaking back(9)R????????
34 across- 'E's caught by S.Liston's cut,on going inside count-as invincibility progresses?(12)R?S?????????