### Clue: Sick records written up by week (4)
### Answer: SPEW 
 ### Explanation: Definition: Sick
 **Reversal of**(… written up, in a down clue) EPS(abbrev. for "extended plays", old sound recording and playback formats) **plus**(by) W(abbrev. for "week").
Defn: and an0 To vomit or what is vomited.