Probably planted in a hedgerow and now outgrown its original purpose.
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...are the warty leaves, which look as though they need ironing, and the purplish buds, and the general twig arrangement.
But the leaves don't look as asymmetrical at the base as I would expect. And they don't exhibit the "two tails" shape so beloved of tree books. Also they don't seem to be markedly bigger than those of English Elm, which you would expect, especially on a tree that has clearly been chopped at some point.
Wych Elm doesn't normally sucker, so in your opinion, are the mass of twigs actually suckers, or do you think they are new growth resulting from the original being cut? It looks more like the latter, but it's hard to tell from a photo.
Sorry not to be more positive!
How to take close-ups with cheap phone and hand-lens:
Field Guides for Budding Botanists:
Lat/Lng: 55.4737, -3.2026
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