### Clue: Rancid milk on the turn? Exactly (3,3)
### Answer: OFF PAT 
 ### Explanation: Definition: Exactly 
 OFF(rancid;gone bad, as of butter, for example) + **reversal of**(… on the turn) TAP(to milk;to draw liquid from, like sap from a tree).
Answer: As in "he recited the ode off pat".