How do I set the clock/alarm?

Sounds like you are setting the minute minder instead o fthe clock and the timer is permanently set to "Auto".

Can't find a manual for the exact cooker online but I would hazard it's a normal 5-button timer which should be covered by the info on this site:

http://www.ukwhitegoods.co.uk/help/fix-it-yourself/ovens-hobs-a-cookers/2769-help-my-oven-is-dead.html

You could always try contacting New World cookers (Hint: Google)

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August 2015