### Clue: Improve hospital in Cornish town with no parking zone (7)
### Answer: ENHANCE 
 ### Explanation: Definition: Improve
 H(abbrev. for "hospital")**contained in**(in) "Penzance"(a town in Cornwall) **minus, separately**(with no) "PZ"(abbrev. for "parking zone", as in CPZ/controlled or RPZ/restricted. Or abbrev. for "parking" and "zone" respectively).