Can I please have some help?
10a Reduce the effectiveness of another water snake depriving it of rats (6)
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11a Not perfect, can drop it appears (8) f-l-----
19d Implants not quite admissable without Lisa (6) i---d-
16d Makes a noise like cocaine Les ended up with (8) c-a---e-
21d Bottle opener makes one rich and gets very drunk (6) b---t-