Elongated, distinctively marked abdomen - long jaws, or long something in front....
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Thanks Chris. Most of the time all it showed me was its underside. But half over-balancing in a boggy patch with a handheld camera, that fuzzy one was the best I got! But confirming the genus is good enough for me.
Lat/Lng: 53.6312, -1.5863
OS grid ref: SE274150
Spinning web in reeds by pond