### Clue: Throw into confusion with failure to capture gunmen in the centre of Honolulu (10)
### Answer: DEMORALISE 
 ### Explanation: Definition: Throw into confusion
 DEMISE(the end of/the failure of an enterprise or institution) **containing**(to capture) [ RA(abbrev. for the Royal Artillery, the Gunners in the British Army) **contained in**(in) **middle 2 letters of**(the centre of) "Honolulu" ].