Help identifying tree and whether it can be revived

The attached has been in our garden at least since 2006 when we moved into the property.

With your kind assistance, I would like to establish:

1. The name of this tree, or where I can find out?

2. Is there any chance of reviving it, or did our harsh (British) winter kill if off? Is there any actions I can take to try and revive it, if so?

Thanks.

 

Welcome to GC Laodan, your tree is (was) a Cordyline Australis or Cabbage Palm (not a true palm).
It has taken a severe beating presumably from the last winter as many have, it looks beyond recovery and I suggest cutting it down to a small stump where it should produce suckers which will replace to original plant, it's that or remove it completely.

 

I agree, clear away all the dead leaves from the stem and it will be easier to determine how far back to cut the stem.

It needs cutting just below the point where its died back to.
I would then thin out any new shoots to just two or three.

 

It's unlikely that this can be saved.
They have a central core that stores water, so the tree can survive in hot climates.
Because of the sub-zero temperatures earlier this year, this will have frozen rock-solid and likely killed it off. Most people will have cut these down now.
Though you can "live in hope."