Intro: Define Democratic Deficit... then lay out your main points giving an indication to your conclusion

I would then go for 4 main over riding points

Mine would be

1. House of Lords

2. The voting system - FPTP (lib dems AV referendum it failed)

3. Parliaments ability to scrutinise itself un-codified constitution

4. The EU

5. Scotland, Wales and Northern Ireland don't have full independences

Assess each of these looking for an an argument of how much that contributes to a democratic deficit and then a point against that, before saying if it does create one.

Conclude overall

While we're here, should there be a mention of why we don't have a democratic deficit or is this just looking at the arguments that there is one...

It is a general expression that basically means that many decisions of the European Union are not made by people democratically elected. Indeed, many important actors of the European Union are appointed by member countries, not democratic elections.

An example of using the noun, deficit, is: "an annual operating deficit."

fiscal deficit: not enough money budget deficit: not as much money as you had planned to have in your budget revenue deficit: not enough money coming in trade deficit: you are spending more money on imports than the amount of money which you receive for your exports.