### Clue: Greek punishment backed by one Conservative (5)
### Answer: DORIC 
 ### Explanation: Definition: Greek
 **Reversal of**(… backed) ROD(the …/punishment, as exemplified by the instrument used, as in "spare the rod …") **plus**(backed by) [ I(Roman numeral for "one") + C(abbrev. for a member of the Conservative Party) ].
Defn: An ancient … dialect.