### Clue: Complaint one twit receives over a bit of a pint (5,5)
### Answer: FLUID OUNCE 
 ### Explanation: Definition: a bit of a pint
 FLU(short for "influenza"/an illness/a complaint) + I(Roman numeral for "one") + DUNCE(a twit/a fool) **containing**(receives) O(abbrev. for "over" in cricket scores).
Defn: A unit of volume equivalent to a bit (one-twentieth to be exact) of a pint.