### Clue: Philistine needs hours in gaol to fight a criminal (7,2,4)
### Answer: GOLIATH OF GATH 
 ### Explanation: Definition: Philistine
 H(abbrev. for "hours") **contained in**(in) **anagram of**(… criminal) GAOL TO FIGHT A.
Defn: … famously slain by David in the Bible.