### Clue: Cooking fish in prison — one with new governor at its head (4-6)
### Answer: STIR-FRYING 
 ### Explanation: Definition: Cooking
 FRY(young/newly hatched fish) **contained in**(in) [STIR(slang for prison) + I(Roman numeral for "one") **plus**(with) N(abbrev. for "new" + **1st letter of**(… at its head) "governor"].
Defn: … technique originally from China.