### Clue: 22's menacing beast mopping up duck and orange juice with sponge (6)
### Answer: BOOJUM 
 ### Explanation: Definition: 22's menacing beast
 [O(letter representing 0/duck/in cricket, a batsman's score of 0 runs) + OJ(abbrev. for "orange juice")] **contained in**(mopping up … with) BUM(to sponge/to scrounge off someone).
Defn: …, a dangerous variety of the imaginary animal, the snark, in 22's "The Hunting of the Snark".