### Clue: Upset about parking in middle of road works (5)
### Answer: OPERA 
 ### Explanation: Definition: works
 **Reversal of**(Upset, in a down clue) [ RE(about/with reference to) + P(abbrev. for "parking") ] **contained in**(in) **the 2 central letters of**(middle of) "road".
Defn: A collective term for dramatic works set to music for singers and instrumentalists.